1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/Utils.h" 41 #include "clang/Lex/HeaderSearchOptions.h" 42 #include "clang/Lex/PreprocessorOptions.h" 43 #include "clang/Sema/CodeCompleteOptions.h" 44 #include "clang/Serialization/ASTBitCodes.h" 45 #include "clang/Serialization/ModuleFileExtension.h" 46 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 47 #include "llvm/ADT/APInt.h" 48 #include "llvm/ADT/ArrayRef.h" 49 #include "llvm/ADT/CachedHashString.h" 50 #include "llvm/ADT/FloatingPointMode.h" 51 #include "llvm/ADT/Hashing.h" 52 #include "llvm/ADT/None.h" 53 #include "llvm/ADT/Optional.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Triple.h" 59 #include "llvm/ADT/Twine.h" 60 #include "llvm/IR/DebugInfoMetadata.h" 61 #include "llvm/Linker/Linker.h" 62 #include "llvm/MC/MCTargetOptions.h" 63 #include "llvm/Option/Arg.h" 64 #include "llvm/Option/ArgList.h" 65 #include "llvm/Option/OptSpecifier.h" 66 #include "llvm/Option/OptTable.h" 67 #include "llvm/Option/Option.h" 68 #include "llvm/ProfileData/InstrProfReader.h" 69 #include "llvm/Support/CodeGen.h" 70 #include "llvm/Support/Compiler.h" 71 #include "llvm/Support/Error.h" 72 #include "llvm/Support/ErrorHandling.h" 73 #include "llvm/Support/ErrorOr.h" 74 #include "llvm/Support/FileSystem.h" 75 #include "llvm/Support/Host.h" 76 #include "llvm/Support/MathExtras.h" 77 #include "llvm/Support/MemoryBuffer.h" 78 #include "llvm/Support/Path.h" 79 #include "llvm/Support/Process.h" 80 #include "llvm/Support/Regex.h" 81 #include "llvm/Support/VersionTuple.h" 82 #include "llvm/Support/VirtualFileSystem.h" 83 #include "llvm/Support/raw_ostream.h" 84 #include "llvm/Target/TargetOptions.h" 85 #include <algorithm> 86 #include <atomic> 87 #include <cassert> 88 #include <cstddef> 89 #include <cstring> 90 #include <memory> 91 #include <string> 92 #include <tuple> 93 #include <utility> 94 #include <vector> 95 96 using namespace clang; 97 using namespace driver; 98 using namespace options; 99 using namespace llvm::opt; 100 101 //===----------------------------------------------------------------------===// 102 // Initialization. 103 //===----------------------------------------------------------------------===// 104 105 CompilerInvocationBase::CompilerInvocationBase() 106 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 107 DiagnosticOpts(new DiagnosticOptions()), 108 HeaderSearchOpts(new HeaderSearchOptions()), 109 PreprocessorOpts(new PreprocessorOptions()) {} 110 111 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 112 : LangOpts(new LangOptions(*X.getLangOpts())), 113 TargetOpts(new TargetOptions(X.getTargetOpts())), 114 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 115 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 116 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 117 118 CompilerInvocationBase::~CompilerInvocationBase() = default; 119 120 //===----------------------------------------------------------------------===// 121 // Deserialization (from args) 122 //===----------------------------------------------------------------------===// 123 124 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 125 DiagnosticsEngine &Diags) { 126 unsigned DefaultOpt = llvm::CodeGenOpt::None; 127 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 128 DefaultOpt = llvm::CodeGenOpt::Default; 129 130 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 131 if (A->getOption().matches(options::OPT_O0)) 132 return llvm::CodeGenOpt::None; 133 134 if (A->getOption().matches(options::OPT_Ofast)) 135 return llvm::CodeGenOpt::Aggressive; 136 137 assert(A->getOption().matches(options::OPT_O)); 138 139 StringRef S(A->getValue()); 140 if (S == "s" || S == "z" || S.empty()) 141 return llvm::CodeGenOpt::Default; 142 143 if (S == "g") 144 return llvm::CodeGenOpt::Less; 145 146 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 147 } 148 149 return DefaultOpt; 150 } 151 152 static unsigned getOptimizationLevelSize(ArgList &Args) { 153 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 154 if (A->getOption().matches(options::OPT_O)) { 155 switch (A->getValue()[0]) { 156 default: 157 return 0; 158 case 's': 159 return 1; 160 case 'z': 161 return 2; 162 } 163 } 164 } 165 return 0; 166 } 167 168 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 169 OptSpecifier GroupWithValue, 170 std::vector<std::string> &Diagnostics) { 171 for (auto *A : Args.filtered(Group)) { 172 if (A->getOption().getKind() == Option::FlagClass) { 173 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 174 // its name (minus the "W" or "R" at the beginning) to the warning list. 175 Diagnostics.push_back( 176 std::string(A->getOption().getName().drop_front(1))); 177 } else if (A->getOption().matches(GroupWithValue)) { 178 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 179 Diagnostics.push_back( 180 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 181 } else { 182 // Otherwise, add its value (for OPT_W_Joined and similar). 183 for (const auto *Arg : A->getValues()) 184 Diagnostics.emplace_back(Arg); 185 } 186 } 187 } 188 189 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 190 // it won't verify the input. 191 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 192 DiagnosticsEngine *Diags); 193 194 static void getAllNoBuiltinFuncValues(ArgList &Args, 195 std::vector<std::string> &Funcs) { 196 SmallVector<const char *, 8> Values; 197 for (const auto &Arg : Args) { 198 const Option &O = Arg->getOption(); 199 if (O.matches(options::OPT_fno_builtin_)) { 200 const char *FuncName = Arg->getValue(); 201 if (Builtin::Context::isBuiltinFunc(FuncName)) 202 Values.push_back(FuncName); 203 } 204 } 205 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 206 } 207 208 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 209 DiagnosticsEngine &Diags) { 210 bool Success = true; 211 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 212 StringRef Name = A->getValue(); 213 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 214 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 215 .Case(CMDFLAG, NAME##Model) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumStores); 218 if (Value == NumStores) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisStoreOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 228 StringRef Name = A->getValue(); 229 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 230 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 231 .Case(CMDFLAG, NAME##Model) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumConstraints); 234 if (Value == NumConstraints) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.AnalysisConstraintsOpt = Value; 240 } 241 } 242 243 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 244 StringRef Name = A->getValue(); 245 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 246 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 247 .Case(CMDFLAG, PD_##NAME) 248 #include "clang/StaticAnalyzer/Core/Analyses.def" 249 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 250 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 251 Diags.Report(diag::err_drv_invalid_value) 252 << A->getAsString(Args) << Name; 253 Success = false; 254 } else { 255 Opts.AnalysisDiagOpt = Value; 256 } 257 } 258 259 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 260 StringRef Name = A->getValue(); 261 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 262 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 263 .Case(CMDFLAG, NAME) 264 #include "clang/StaticAnalyzer/Core/Analyses.def" 265 .Default(NumPurgeModes); 266 if (Value == NumPurgeModes) { 267 Diags.Report(diag::err_drv_invalid_value) 268 << A->getAsString(Args) << Name; 269 Success = false; 270 } else { 271 Opts.AnalysisPurgeOpt = Value; 272 } 273 } 274 275 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 276 StringRef Name = A->getValue(); 277 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 278 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 279 .Case(CMDFLAG, NAME) 280 #include "clang/StaticAnalyzer/Core/Analyses.def" 281 .Default(NumInliningModes); 282 if (Value == NumInliningModes) { 283 Diags.Report(diag::err_drv_invalid_value) 284 << A->getAsString(Args) << Name; 285 Success = false; 286 } else { 287 Opts.InliningMode = Value; 288 } 289 } 290 291 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 292 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha); 293 Opts.ShowCheckerHelpDeveloper = 294 Args.hasArg(OPT_analyzer_checker_help_developer); 295 296 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help); 297 Opts.ShowCheckerOptionAlphaList = 298 Args.hasArg(OPT_analyzer_checker_option_help_alpha); 299 Opts.ShowCheckerOptionDeveloperList = 300 Args.hasArg(OPT_analyzer_checker_option_help_developer); 301 302 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help); 303 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 304 Opts.ShouldEmitErrorsOnInvalidConfigValue = 305 /* negated */!llvm::StringSwitch<bool>( 306 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode)) 307 .Case("true", true) 308 .Case("false", false) 309 .Default(false); 310 Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks); 311 312 Opts.visualizeExplodedGraphWithGraphViz = 313 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 314 Opts.DumpExplodedGraphTo = 315 std::string(Args.getLastArgValue(OPT_analyzer_dump_egraph)); 316 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 317 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror); 318 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 319 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 320 Opts.AnalyzeNestedBlocks = 321 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 322 Opts.AnalyzeSpecificFunction = 323 std::string(Args.getLastArgValue(OPT_analyze_function)); 324 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 325 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 326 Opts.maxBlockVisitOnPath = 327 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 328 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 329 Opts.InlineMaxStackDepth = 330 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 331 Opts.InlineMaxStackDepth, Diags); 332 333 Opts.CheckersAndPackages.clear(); 334 for (const Arg *A : 335 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 336 A->claim(); 337 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 338 // We can have a list of comma separated checker names, e.g: 339 // '-analyzer-checker=cocoa,unix' 340 StringRef CheckerAndPackageList = A->getValue(); 341 SmallVector<StringRef, 16> CheckersAndPackages; 342 CheckerAndPackageList.split(CheckersAndPackages, ","); 343 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 344 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 345 IsEnabled); 346 } 347 348 // Go through the analyzer configuration options. 349 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 350 351 // We can have a list of comma separated config names, e.g: 352 // '-analyzer-config key1=val1,key2=val2' 353 StringRef configList = A->getValue(); 354 SmallVector<StringRef, 4> configVals; 355 configList.split(configVals, ","); 356 for (const auto &configVal : configVals) { 357 StringRef key, val; 358 std::tie(key, val) = configVal.split("="); 359 if (val.empty()) { 360 Diags.Report(SourceLocation(), 361 diag::err_analyzer_config_no_value) << configVal; 362 Success = false; 363 break; 364 } 365 if (val.find('=') != StringRef::npos) { 366 Diags.Report(SourceLocation(), 367 diag::err_analyzer_config_multiple_values) 368 << configVal; 369 Success = false; 370 break; 371 } 372 373 // TODO: Check checker options too, possibly in CheckerRegistry. 374 // Leave unknown non-checker configs unclaimed. 375 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 376 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 377 Diags.Report(diag::err_analyzer_config_unknown) << key; 378 continue; 379 } 380 381 A->claim(); 382 Opts.Config[key] = std::string(val); 383 } 384 } 385 386 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 387 parseAnalyzerConfigs(Opts, &Diags); 388 else 389 parseAnalyzerConfigs(Opts, nullptr); 390 391 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 392 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 393 if (i != 0) 394 os << " "; 395 os << Args.getArgString(i); 396 } 397 os.flush(); 398 399 return Success; 400 } 401 402 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 403 StringRef OptionName, StringRef DefaultVal) { 404 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 405 } 406 407 static void initOption(AnalyzerOptions::ConfigTable &Config, 408 DiagnosticsEngine *Diags, 409 StringRef &OptionField, StringRef Name, 410 StringRef DefaultVal) { 411 // String options may be known to invalid (e.g. if the expected string is a 412 // file name, but the file does not exist), those will have to be checked in 413 // parseConfigs. 414 OptionField = getStringOption(Config, Name, DefaultVal); 415 } 416 417 static void initOption(AnalyzerOptions::ConfigTable &Config, 418 DiagnosticsEngine *Diags, 419 bool &OptionField, StringRef Name, bool DefaultVal) { 420 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 421 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 422 .Case("true", true) 423 .Case("false", false) 424 .Default(None); 425 426 if (!PossiblyInvalidVal) { 427 if (Diags) 428 Diags->Report(diag::err_analyzer_config_invalid_input) 429 << Name << "a boolean"; 430 else 431 OptionField = DefaultVal; 432 } else 433 OptionField = PossiblyInvalidVal.getValue(); 434 } 435 436 static void initOption(AnalyzerOptions::ConfigTable &Config, 437 DiagnosticsEngine *Diags, 438 unsigned &OptionField, StringRef Name, 439 unsigned DefaultVal) { 440 441 OptionField = DefaultVal; 442 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 443 .getAsInteger(0, OptionField); 444 if (Diags && HasFailed) 445 Diags->Report(diag::err_analyzer_config_invalid_input) 446 << Name << "an unsigned"; 447 } 448 449 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 450 DiagnosticsEngine *Diags) { 451 // TODO: There's no need to store the entire configtable, it'd be plenty 452 // enough tostore checker options. 453 454 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 455 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 456 457 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 458 SHALLOW_VAL, DEEP_VAL) \ 459 switch (AnOpts.getUserMode()) { \ 460 case UMK_Shallow: \ 461 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 462 break; \ 463 case UMK_Deep: \ 464 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 465 break; \ 466 } \ 467 468 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 469 #undef ANALYZER_OPTION 470 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 471 472 // At this point, AnalyzerOptions is configured. Let's validate some options. 473 474 // FIXME: Here we try to validate the silenced checkers or packages are valid. 475 // The current approach only validates the registered checkers which does not 476 // contain the runtime enabled checkers and optimally we would validate both. 477 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 478 std::vector<StringRef> Checkers = 479 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 480 std::vector<StringRef> Packages = 481 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 482 483 SmallVector<StringRef, 16> CheckersAndPackages; 484 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 485 486 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 487 if (Diags) { 488 bool IsChecker = CheckerOrPackage.contains('.'); 489 bool IsValidName = 490 IsChecker 491 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 492 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 493 494 if (!IsValidName) 495 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 496 << CheckerOrPackage; 497 } 498 499 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 500 } 501 } 502 503 if (!Diags) 504 return; 505 506 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 507 Diags->Report(diag::err_analyzer_config_invalid_input) 508 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 509 510 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 511 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 512 << "a filename"; 513 514 if (!AnOpts.ModelPath.empty() && 515 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 516 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 517 << "a filename"; 518 } 519 520 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 521 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 522 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 523 return true; 524 } 525 526 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 527 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 528 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 529 } 530 531 static llvm::Reloc::Model getRelocModel(ArgList &Args, 532 DiagnosticsEngine &Diags) { 533 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) { 534 StringRef Value = A->getValue(); 535 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value) 536 .Case("static", llvm::Reloc::Static) 537 .Case("pic", llvm::Reloc::PIC_) 538 .Case("ropi", llvm::Reloc::ROPI) 539 .Case("rwpi", llvm::Reloc::RWPI) 540 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI) 541 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC) 542 .Default(None); 543 if (RM.hasValue()) 544 return *RM; 545 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 546 } 547 return llvm::Reloc::PIC_; 548 } 549 550 /// Create a new Regex instance out of the string value in \p RpassArg. 551 /// It returns a pointer to the newly generated Regex instance. 552 static std::shared_ptr<llvm::Regex> 553 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 554 Arg *RpassArg) { 555 StringRef Val = RpassArg->getValue(); 556 std::string RegexError; 557 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 558 if (!Pattern->isValid(RegexError)) { 559 Diags.Report(diag::err_drv_optimization_remark_pattern) 560 << RegexError << RpassArg->getAsString(Args); 561 Pattern.reset(); 562 } 563 return Pattern; 564 } 565 566 static bool parseDiagnosticLevelMask(StringRef FlagName, 567 const std::vector<std::string> &Levels, 568 DiagnosticsEngine *Diags, 569 DiagnosticLevelMask &M) { 570 bool Success = true; 571 for (const auto &Level : Levels) { 572 DiagnosticLevelMask const PM = 573 llvm::StringSwitch<DiagnosticLevelMask>(Level) 574 .Case("note", DiagnosticLevelMask::Note) 575 .Case("remark", DiagnosticLevelMask::Remark) 576 .Case("warning", DiagnosticLevelMask::Warning) 577 .Case("error", DiagnosticLevelMask::Error) 578 .Default(DiagnosticLevelMask::None); 579 if (PM == DiagnosticLevelMask::None) { 580 Success = false; 581 if (Diags) 582 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 583 } 584 M = M | PM; 585 } 586 return Success; 587 } 588 589 static void parseSanitizerKinds(StringRef FlagName, 590 const std::vector<std::string> &Sanitizers, 591 DiagnosticsEngine &Diags, SanitizerSet &S) { 592 for (const auto &Sanitizer : Sanitizers) { 593 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 594 if (K == SanitizerMask()) 595 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 596 else 597 S.set(K, true); 598 } 599 } 600 601 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 602 ArgList &Args, DiagnosticsEngine &D, 603 XRayInstrSet &S) { 604 llvm::SmallVector<StringRef, 2> BundleParts; 605 llvm::SplitString(Bundle, BundleParts, ","); 606 for (const auto &B : BundleParts) { 607 auto Mask = parseXRayInstrValue(B); 608 if (Mask == XRayInstrKind::None) 609 if (B != "none") 610 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 611 else 612 S.Mask = Mask; 613 else if (Mask == XRayInstrKind::All) 614 S.Mask = Mask; 615 else 616 S.set(Mask, true); 617 } 618 } 619 620 // Set the profile kind for fprofile-instrument. 621 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 622 DiagnosticsEngine &Diags) { 623 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 624 if (A == nullptr) 625 return; 626 StringRef S = A->getValue(); 627 unsigned I = llvm::StringSwitch<unsigned>(S) 628 .Case("none", CodeGenOptions::ProfileNone) 629 .Case("clang", CodeGenOptions::ProfileClangInstr) 630 .Case("llvm", CodeGenOptions::ProfileIRInstr) 631 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr) 632 .Default(~0U); 633 if (I == ~0U) { 634 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 635 << S; 636 return; 637 } 638 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I); 639 Opts.setProfileInstr(Instrumentor); 640 } 641 642 // Set the profile kind using fprofile-instrument-use-path. 643 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 644 const Twine &ProfileName) { 645 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 646 // In error, return silently and let Clang PGOUse report the error message. 647 if (auto E = ReaderOrErr.takeError()) { 648 llvm::consumeError(std::move(E)); 649 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 650 return; 651 } 652 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 653 std::move(ReaderOrErr.get()); 654 if (PGOReader->isIRLevelProfile()) { 655 if (PGOReader->hasCSIRLevelProfile()) 656 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 657 else 658 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 659 } else 660 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 661 } 662 663 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 664 DiagnosticsEngine &Diags, 665 const TargetOptions &TargetOpts, 666 const FrontendOptions &FrontendOpts) { 667 bool Success = true; 668 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 669 670 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 671 // TODO: This could be done in Driver 672 unsigned MaxOptLevel = 3; 673 if (OptimizationLevel > MaxOptLevel) { 674 // If the optimization level is not supported, fall back on the default 675 // optimization 676 Diags.Report(diag::warn_drv_optimization_value) 677 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 678 OptimizationLevel = MaxOptLevel; 679 } 680 Opts.OptimizationLevel = OptimizationLevel; 681 682 // At O0 we want to fully disable inlining outside of cases marked with 683 // 'alwaysinline' that are required for correctness. 684 Opts.setInlining((Opts.OptimizationLevel == 0) 685 ? CodeGenOptions::OnlyAlwaysInlining 686 : CodeGenOptions::NormalInlining); 687 // Explicit inlining flags can disable some or all inlining even at 688 // optimization levels above zero. 689 if (Arg *InlineArg = Args.getLastArg( 690 options::OPT_finline_functions, options::OPT_finline_hint_functions, 691 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 692 if (Opts.OptimizationLevel > 0) { 693 const Option &InlineOpt = InlineArg->getOption(); 694 if (InlineOpt.matches(options::OPT_finline_functions)) 695 Opts.setInlining(CodeGenOptions::NormalInlining); 696 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 697 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 698 else 699 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 700 } 701 } 702 703 Opts.ExperimentalNewPassManager = Args.hasFlag( 704 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager, 705 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER); 706 707 Opts.DebugPassManager = 708 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager, 709 /* Default */ false); 710 711 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 712 StringRef Name = A->getValue(); 713 if (Name == "Accelerate") 714 Opts.setVecLib(CodeGenOptions::Accelerate); 715 else if (Name == "MASSV") 716 Opts.setVecLib(CodeGenOptions::MASSV); 717 else if (Name == "SVML") 718 Opts.setVecLib(CodeGenOptions::SVML); 719 else if (Name == "none") 720 Opts.setVecLib(CodeGenOptions::NoLibrary); 721 else 722 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 723 } 724 725 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 726 unsigned Val = 727 llvm::StringSwitch<unsigned>(A->getValue()) 728 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 729 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 730 .Case("constructor", codegenoptions::DebugInfoConstructor) 731 .Case("limited", codegenoptions::LimitedDebugInfo) 732 .Case("standalone", codegenoptions::FullDebugInfo) 733 .Default(~0U); 734 if (Val == ~0U) 735 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 736 << A->getValue(); 737 else 738 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 739 } 740 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 741 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 742 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 743 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 744 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 745 .Default(~0U); 746 if (Val == ~0U) 747 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 748 << A->getValue(); 749 else 750 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 751 } 752 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 753 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 754 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 755 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash); 756 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro); 757 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 758 Opts.VirtualFunctionElimination = 759 Args.hasArg(OPT_fvirtual_function_elimination); 760 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 761 Opts.SplitDwarfFile = std::string(Args.getLastArgValue(OPT_split_dwarf_file)); 762 Opts.SplitDwarfOutput = 763 std::string(Args.getLastArgValue(OPT_split_dwarf_output)); 764 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 765 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 766 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import); 767 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params); 768 Opts.EmbedSource = Args.hasArg(OPT_gembed_source); 769 Opts.ForceDwarfFrameSection = Args.hasArg(OPT_fforce_dwarf_frame); 770 771 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 772 auto Split = StringRef(Arg).split('='); 773 Opts.DebugPrefixMap.insert( 774 {std::string(Split.first), std::string(Split.second)}); 775 } 776 777 if (const Arg *A = 778 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 779 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 780 781 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 782 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers); 783 784 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 785 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 786 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 787 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 788 789 llvm::Triple T(TargetOpts.Triple); 790 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 791 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 792 Opts.EmitCallSiteInfo = true; 793 794 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone); 795 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 796 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs); 797 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 798 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 799 OPT_fuse_register_sized_bitfield_access); 800 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 801 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 802 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 803 Args.hasArg(OPT_new_struct_path_tbaa); 804 Opts.FineGrainedBitfieldAccesses = 805 Args.hasFlag(OPT_ffine_grained_bitfield_accesses, 806 OPT_fno_fine_grained_bitfield_accesses, false); 807 Opts.DwarfDebugFlags = 808 std::string(Args.getLastArgValue(OPT_dwarf_debug_flags)); 809 Opts.RecordCommandLine = 810 std::string(Args.getLastArgValue(OPT_record_command_line)); 811 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants); 812 Opts.NoCommon = !Args.hasArg(OPT_fcommon); 813 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables); 814 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 815 Opts.OptimizeSize = getOptimizationLevelSize(Args); 816 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 817 Args.hasArg(OPT_ffreestanding)); 818 if (Opts.SimplifyLibCalls) 819 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 820 Opts.UnrollLoops = 821 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 822 (Opts.OptimizationLevel > 1)); 823 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 824 825 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 826 Opts.CallGraphProfile = !Opts.DisableIntegratedAS; 827 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 828 Opts.SampleProfileFile = 829 std::string(Args.getLastArgValue(OPT_fprofile_sample_use_EQ)); 830 Opts.DebugInfoForProfiling = Args.hasFlag( 831 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false); 832 Opts.DebugNameTable = static_cast<unsigned>( 833 Args.hasArg(OPT_ggnu_pubnames) 834 ? llvm::DICompileUnit::DebugNameTableKind::GNU 835 : Args.hasArg(OPT_gpubnames) 836 ? llvm::DICompileUnit::DebugNameTableKind::Default 837 : llvm::DICompileUnit::DebugNameTableKind::None); 838 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address); 839 840 setPGOInstrumentor(Opts, Args, Diags); 841 Opts.InstrProfileOutput = 842 std::string(Args.getLastArgValue(OPT_fprofile_instrument_path_EQ)); 843 Opts.ProfileInstrumentUsePath = 844 std::string(Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ)); 845 if (!Opts.ProfileInstrumentUsePath.empty()) 846 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 847 Opts.ProfileRemappingFile = 848 std::string(Args.getLastArgValue(OPT_fprofile_remapping_file_EQ)); 849 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) { 850 Diags.Report(diag::err_drv_argument_only_allowed_with) 851 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 852 << "-fexperimental-new-pass-manager"; 853 } 854 855 Opts.CoverageMapping = 856 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 857 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 858 Opts.AsmVerbose = !Args.hasArg(OPT_fno_verbose_asm); 859 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 860 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 861 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 862 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 863 Opts.RegisterGlobalDtorsWithAtExit = 864 Args.hasArg(OPT_fregister_global_dtors_with_atexit); 865 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 866 Opts.CodeModel = TargetOpts.CodeModel; 867 Opts.DebugPass = std::string(Args.getLastArgValue(OPT_mdebug_pass)); 868 869 // Handle -mframe-pointer option. 870 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) { 871 CodeGenOptions::FramePointerKind FP; 872 StringRef Name = A->getValue(); 873 bool ValidFP = true; 874 if (Name == "none") 875 FP = CodeGenOptions::FramePointerKind::None; 876 else if (Name == "non-leaf") 877 FP = CodeGenOptions::FramePointerKind::NonLeaf; 878 else if (Name == "all") 879 FP = CodeGenOptions::FramePointerKind::All; 880 else { 881 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 882 Success = false; 883 ValidFP = false; 884 } 885 if (ValidFP) 886 Opts.setFramePointer(FP); 887 } 888 889 Opts.DisableFree = Args.hasArg(OPT_disable_free); 890 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 891 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 892 Opts.NoEscapingBlockTailCalls = 893 Args.hasArg(OPT_fno_escaping_block_tail_calls); 894 Opts.FloatABI = std::string(Args.getLastArgValue(OPT_mfloat_abi)); 895 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) || 896 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 897 Args.hasArg(OPT_cl_fast_relaxed_math); 898 Opts.LimitFloatPrecision = 899 std::string(Args.getLastArgValue(OPT_mlimit_float_precision)); 900 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 901 Args.hasArg(OPT_cl_finite_math_only) || 902 Args.hasArg(OPT_cl_fast_relaxed_math)); 903 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 904 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 905 Args.hasArg(OPT_cl_finite_math_only) || 906 Args.hasArg(OPT_cl_fast_relaxed_math)); 907 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 908 Args.hasArg(OPT_cl_no_signed_zeros) || 909 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 910 Args.hasArg(OPT_cl_fast_relaxed_math)); 911 Opts.Reassociate = Args.hasArg(OPT_mreassociate); 912 Opts.CorrectlyRoundedDivSqrt = 913 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 914 Opts.UniformWGSize = 915 Args.hasArg(OPT_cl_uniform_work_group_size); 916 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 917 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 918 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 919 Opts.StrictFloatCastOverflow = 920 !Args.hasArg(OPT_fno_strict_float_cast_overflow); 921 922 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 923 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 924 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 925 Opts.SmallDataLimit = 926 getLastArgIntValue(Args, OPT_msmall_data_limit, 0, Diags); 927 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 928 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn); 929 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 930 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 931 Opts.IncrementalLinkerCompatible = 932 Args.hasArg(OPT_mincremental_linker_compatible); 933 Opts.PIECopyRelocations = 934 Args.hasArg(OPT_mpie_copy_relocations); 935 Opts.NoPLT = Args.hasArg(OPT_fno_plt); 936 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 937 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 938 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 939 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 940 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return); 941 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 942 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 943 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 944 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 945 Args.hasArg(OPT_cl_fast_relaxed_math); 946 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 947 Opts.RelocationModel = getRelocModel(Args, Diags); 948 Opts.ThreadModel = 949 std::string(Args.getLastArgValue(OPT_mthread_model, "posix")); 950 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 951 Diags.Report(diag::err_drv_invalid_value) 952 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 953 << Opts.ThreadModel; 954 Opts.TrapFuncName = std::string(Args.getLastArgValue(OPT_ftrap_function_EQ)); 955 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array); 956 957 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 958 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 959 Opts.StackSizeSection = Args.hasArg(OPT_fstack_size_section); 960 Opts.UniqueSectionNames = !Args.hasArg(OPT_fno_unique_section_names); 961 Opts.UniqueInternalLinkageNames = 962 Args.hasArg(OPT_funique_internal_linkage_names); 963 964 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 965 966 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 967 968 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks); 969 970 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate); 971 972 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 973 Opts.PrepareForThinLTO = false; 974 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 975 StringRef S = A->getValue(); 976 if (S == "thin") 977 Opts.PrepareForThinLTO = true; 978 else if (S != "full") 979 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 980 } 981 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false); 982 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit); 983 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 984 if (IK.getLanguage() != Language::LLVM_IR) 985 Diags.Report(diag::err_drv_argument_only_allowed_with) 986 << A->getAsString(Args) << "-x ir"; 987 Opts.ThinLTOIndexFile = 988 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 989 } 990 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 991 Opts.SaveTempsFilePrefix = 992 llvm::StringSwitch<std::string>(A->getValue()) 993 .Case("obj", FrontendOpts.OutputFile) 994 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str()); 995 996 Opts.ThinLinkBitcodeFile = 997 std::string(Args.getLastArgValue(OPT_fthin_link_bitcode_EQ)); 998 999 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 1000 1001 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 1002 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 1003 1004 Opts.PreferVectorWidth = 1005 std::string(Args.getLastArgValue(OPT_mprefer_vector_width_EQ)); 1006 1007 Opts.MainFileName = std::string(Args.getLastArgValue(OPT_main_file_name)); 1008 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 1009 1010 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks); 1011 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard); 1012 1013 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 1014 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 1015 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 1016 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1017 Opts.CoverageDataFile = 1018 std::string(Args.getLastArgValue(OPT_coverage_data_file)); 1019 Opts.CoverageNotesFile = 1020 std::string(Args.getLastArgValue(OPT_coverage_notes_file)); 1021 Opts.ProfileFilterFiles = 1022 std::string(Args.getLastArgValue(OPT_fprofile_filter_files_EQ)); 1023 Opts.ProfileExcludeFiles = 1024 std::string(Args.getLastArgValue(OPT_fprofile_exclude_files_EQ)); 1025 if (Args.hasArg(OPT_coverage_version_EQ)) { 1026 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1027 if (CoverageVersion.size() != 4) { 1028 Diags.Report(diag::err_drv_invalid_value) 1029 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1030 << CoverageVersion; 1031 } else { 1032 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1033 } 1034 } 1035 } 1036 // Handle -fembed-bitcode option. 1037 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 1038 StringRef Name = A->getValue(); 1039 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1040 .Case("off", CodeGenOptions::Embed_Off) 1041 .Case("all", CodeGenOptions::Embed_All) 1042 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 1043 .Case("marker", CodeGenOptions::Embed_Marker) 1044 .Default(~0U); 1045 if (Model == ~0U) { 1046 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1047 Success = false; 1048 } else 1049 Opts.setEmbedBitcode( 1050 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 1051 } 1052 // FIXME: For backend options that are not yet recorded as function 1053 // attributes in the IR, keep track of them so we can embed them in a 1054 // separate data section and use them when building the bitcode. 1055 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 1056 for (const auto &A : Args) { 1057 // Do not encode output and input. 1058 if (A->getOption().getID() == options::OPT_o || 1059 A->getOption().getID() == options::OPT_INPUT || 1060 A->getOption().getID() == options::OPT_x || 1061 A->getOption().getID() == options::OPT_fembed_bitcode || 1062 (A->getOption().getGroup().isValid() && 1063 A->getOption().getGroup().getID() == options::OPT_W_Group)) 1064 continue; 1065 ArgStringList ASL; 1066 A->render(Args, ASL); 1067 for (const auto &arg : ASL) { 1068 StringRef ArgStr(arg); 1069 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1070 // using \00 to separate each commandline options. 1071 Opts.CmdArgs.push_back('\0'); 1072 } 1073 } 1074 } 1075 1076 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type); 1077 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 1078 Opts.InstrumentFunctionsAfterInlining = 1079 Args.hasArg(OPT_finstrument_functions_after_inlining); 1080 Opts.InstrumentFunctionEntryBare = 1081 Args.hasArg(OPT_finstrument_function_entry_bare); 1082 1083 Opts.XRayInstrumentFunctions = 1084 Args.hasArg(OPT_fxray_instrument); 1085 Opts.XRayAlwaysEmitCustomEvents = 1086 Args.hasArg(OPT_fxray_always_emit_customevents); 1087 Opts.XRayAlwaysEmitTypedEvents = 1088 Args.hasArg(OPT_fxray_always_emit_typedevents); 1089 Opts.XRayInstructionThreshold = 1090 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags); 1091 Opts.XRayIgnoreLoops = Args.hasArg(OPT_fxray_ignore_loops); 1092 1093 auto XRayInstrBundles = 1094 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1095 if (XRayInstrBundles.empty()) 1096 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1097 else 1098 for (const auto &A : XRayInstrBundles) 1099 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1100 Diags, Opts.XRayInstrumentationBundle); 1101 1102 Opts.PatchableFunctionEntryCount = 1103 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags); 1104 Opts.PatchableFunctionEntryOffset = getLastArgIntValue( 1105 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags); 1106 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 1107 Opts.CallFEntry = Args.hasArg(OPT_mfentry); 1108 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount); 1109 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount); 1110 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack); 1111 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 1112 1113 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1114 StringRef Name = A->getValue(); 1115 if (Name == "full") { 1116 Opts.CFProtectionReturn = 1; 1117 Opts.CFProtectionBranch = 1; 1118 } else if (Name == "return") 1119 Opts.CFProtectionReturn = 1; 1120 else if (Name == "branch") 1121 Opts.CFProtectionBranch = 1; 1122 else if (Name != "none") { 1123 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1124 Success = false; 1125 } 1126 } 1127 1128 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections, 1129 OPT_compress_debug_sections_EQ)) { 1130 if (A->getOption().getID() == OPT_compress_debug_sections) { 1131 // TODO: be more clever about the compression type auto-detection 1132 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU); 1133 } else { 1134 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue()) 1135 .Case("none", llvm::DebugCompressionType::None) 1136 .Case("zlib", llvm::DebugCompressionType::Z) 1137 .Case("zlib-gnu", llvm::DebugCompressionType::GNU) 1138 .Default(llvm::DebugCompressionType::None); 1139 Opts.setCompressDebugSections(DCT); 1140 } 1141 } 1142 1143 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 1144 Opts.DebugCompilationDir = 1145 std::string(Args.getLastArgValue(OPT_fdebug_compilation_dir)); 1146 for (auto *A : 1147 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1148 CodeGenOptions::BitcodeFileToLink F; 1149 F.Filename = A->getValue(); 1150 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1151 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1152 // When linking CUDA bitcode, propagate function attributes so that 1153 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1154 F.PropagateAttrs = true; 1155 F.Internalize = true; 1156 } 1157 Opts.LinkBitcodeFiles.push_back(F); 1158 } 1159 Opts.SanitizeCoverageType = 1160 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 1161 Opts.SanitizeCoverageIndirectCalls = 1162 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 1163 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 1164 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 1165 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 1166 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 1167 Opts.SanitizeCoverage8bitCounters = 1168 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 1169 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 1170 Opts.SanitizeCoverageTracePCGuard = 1171 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 1172 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune); 1173 Opts.SanitizeCoverageInline8bitCounters = 1174 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters); 1175 Opts.SanitizeCoverageInlineBoolFlag = 1176 Args.hasArg(OPT_fsanitize_coverage_inline_bool_flag); 1177 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table); 1178 Opts.SanitizeCoverageStackDepth = 1179 Args.hasArg(OPT_fsanitize_coverage_stack_depth); 1180 Opts.SanitizeCoverageWhitelistFiles = 1181 Args.getAllArgValues(OPT_fsanitize_coverage_whitelist); 1182 Opts.SanitizeCoverageBlacklistFiles = 1183 Args.getAllArgValues(OPT_fsanitize_coverage_blacklist); 1184 Opts.SanitizeMemoryTrackOrigins = 1185 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 1186 Opts.SanitizeMemoryUseAfterDtor = 1187 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor, 1188 OPT_fno_sanitize_memory_use_after_dtor, 1189 false); 1190 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime); 1191 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 1192 Opts.SanitizeCfiICallGeneralizePointers = 1193 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers); 1194 Opts.SanitizeCfiCanonicalJumpTables = 1195 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables); 1196 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 1197 if (Arg *A = Args.getLastArg( 1198 OPT_fsanitize_address_poison_custom_array_cookie, 1199 OPT_fno_sanitize_address_poison_custom_array_cookie)) { 1200 Opts.SanitizeAddressPoisonCustomArrayCookie = 1201 A->getOption().getID() == 1202 OPT_fsanitize_address_poison_custom_array_cookie; 1203 } 1204 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 1205 OPT_fno_sanitize_address_use_after_scope)) { 1206 Opts.SanitizeAddressUseAfterScope = 1207 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 1208 } 1209 Opts.SanitizeAddressGlobalsDeadStripping = 1210 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping); 1211 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator, 1212 OPT_fno_sanitize_address_use_odr_indicator)) { 1213 Opts.SanitizeAddressUseOdrIndicator = 1214 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator; 1215 } 1216 Opts.SSPBufferSize = 1217 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 1218 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 1219 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 1220 StringRef Val = A->getValue(); 1221 unsigned StackAlignment = Opts.StackAlignment; 1222 Val.getAsInteger(10, StackAlignment); 1223 Opts.StackAlignment = StackAlignment; 1224 } 1225 1226 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 1227 StringRef Val = A->getValue(); 1228 unsigned StackProbeSize = Opts.StackProbeSize; 1229 Val.getAsInteger(0, StackProbeSize); 1230 Opts.StackProbeSize = StackProbeSize; 1231 } 1232 1233 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe); 1234 1235 Opts.StackClashProtector = Args.hasArg(OPT_fstack_clash_protection); 1236 1237 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 1238 StringRef Name = A->getValue(); 1239 unsigned Method = llvm::StringSwitch<unsigned>(Name) 1240 .Case("legacy", CodeGenOptions::Legacy) 1241 .Case("non-legacy", CodeGenOptions::NonLegacy) 1242 .Case("mixed", CodeGenOptions::Mixed) 1243 .Default(~0U); 1244 if (Method == ~0U) { 1245 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1246 Success = false; 1247 } else { 1248 Opts.setObjCDispatchMethod( 1249 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 1250 } 1251 } 1252 1253 1254 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls)) 1255 Opts.ObjCConvertMessagesToRuntimeCalls = 0; 1256 1257 if (Args.getLastArg(OPT_femulated_tls) || 1258 Args.getLastArg(OPT_fno_emulated_tls)) { 1259 Opts.ExplicitEmulatedTLS = true; 1260 Opts.EmulatedTLS = 1261 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 1262 } 1263 1264 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1265 StringRef Name = A->getValue(); 1266 unsigned Model = llvm::StringSwitch<unsigned>(Name) 1267 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 1268 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 1269 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 1270 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 1271 .Default(~0U); 1272 if (Model == ~0U) { 1273 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1274 Success = false; 1275 } else { 1276 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 1277 } 1278 } 1279 1280 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags); 1281 1282 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1283 StringRef Val = A->getValue(); 1284 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1285 if (!Opts.FPDenormalMode.isValid()) 1286 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1287 } 1288 1289 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1290 StringRef Val = A->getValue(); 1291 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1292 if (!Opts.FP32DenormalMode.isValid()) 1293 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1294 } 1295 1296 // X86_32 has -fppc-struct-return and -freg-struct-return. 1297 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1298 if (Arg *A = 1299 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1300 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1301 const Option &O = A->getOption(); 1302 if (O.matches(OPT_fpcc_struct_return) || 1303 O.matches(OPT_maix_struct_return)) { 1304 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1305 } else { 1306 assert(O.matches(OPT_freg_struct_return) || 1307 O.matches(OPT_msvr4_struct_return)); 1308 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1309 } 1310 } 1311 1312 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 1313 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 1314 bool NeedLocTracking = false; 1315 1316 Opts.OptRecordFile = std::string(Args.getLastArgValue(OPT_opt_record_file)); 1317 if (!Opts.OptRecordFile.empty()) 1318 NeedLocTracking = true; 1319 1320 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1321 Opts.OptRecordPasses = A->getValue(); 1322 NeedLocTracking = true; 1323 } 1324 1325 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1326 Opts.OptRecordFormat = A->getValue(); 1327 NeedLocTracking = true; 1328 } 1329 1330 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1331 Opts.OptimizationRemarkPattern = 1332 GenerateOptimizationRemarkRegex(Diags, Args, A); 1333 NeedLocTracking = true; 1334 } 1335 1336 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1337 Opts.OptimizationRemarkMissedPattern = 1338 GenerateOptimizationRemarkRegex(Diags, Args, A); 1339 NeedLocTracking = true; 1340 } 1341 1342 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1343 Opts.OptimizationRemarkAnalysisPattern = 1344 GenerateOptimizationRemarkRegex(Diags, Args, A); 1345 NeedLocTracking = true; 1346 } 1347 1348 Opts.DiagnosticsWithHotness = 1349 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 1350 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1351 bool UsingProfile = UsingSampleProfile || 1352 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1353 1354 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1355 // An IR file will contain PGO as metadata 1356 IK.getLanguage() != Language::LLVM_IR) 1357 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1358 << "-fdiagnostics-show-hotness"; 1359 1360 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value( 1361 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0); 1362 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile) 1363 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1364 << "-fdiagnostics-hotness-threshold="; 1365 1366 // If the user requested to use a sample profile for PGO, then the 1367 // backend will need to track source location information so the profile 1368 // can be incorporated into the IR. 1369 if (UsingSampleProfile) 1370 NeedLocTracking = true; 1371 1372 // If the user requested a flag that requires source locations available in 1373 // the backend, make sure that the backend tracks source location information. 1374 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1375 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1376 1377 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 1378 1379 // Parse -fsanitize-recover= arguments. 1380 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1381 parseSanitizerKinds("-fsanitize-recover=", 1382 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1383 Opts.SanitizeRecover); 1384 parseSanitizerKinds("-fsanitize-trap=", 1385 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1386 Opts.SanitizeTrap); 1387 1388 Opts.CudaGpuBinaryFileName = 1389 std::string(Args.getLastArgValue(OPT_fcuda_include_gpubinary)); 1390 1391 Opts.Backchain = Args.hasArg(OPT_mbackchain); 1392 1393 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 1394 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 1395 1396 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1397 1398 Opts.Addrsig = Args.hasArg(OPT_faddrsig); 1399 1400 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts); 1401 1402 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 1403 1404 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr); 1405 1406 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ); 1407 1408 Opts.SymbolPartition = 1409 std::string(Args.getLastArgValue(OPT_fsymbol_partition_EQ)); 1410 1411 Opts.ForceAAPCSBitfieldLoad = Args.hasArg(OPT_ForceAAPCSBitfieldLoad); 1412 return Success; 1413 } 1414 1415 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1416 ArgList &Args) { 1417 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_dependency_file)); 1418 Opts.Targets = Args.getAllArgValues(OPT_MT); 1419 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 1420 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 1421 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 1422 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 1423 Opts.HeaderIncludeOutputFile = 1424 std::string(Args.getLastArgValue(OPT_header_include_file)); 1425 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 1426 if (Args.hasArg(OPT_show_includes)) { 1427 // Writing both /showIncludes and preprocessor output to stdout 1428 // would produce interleaved output, so use stderr for /showIncludes. 1429 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1430 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P)) 1431 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1432 else 1433 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 1434 } else { 1435 Opts.ShowIncludesDest = ShowIncludesDestination::None; 1436 } 1437 Opts.DOTOutputFile = std::string(Args.getLastArgValue(OPT_dependency_dot)); 1438 Opts.ModuleDependencyOutputDir = 1439 std::string(Args.getLastArgValue(OPT_module_dependency_dir)); 1440 if (Args.hasArg(OPT_MV)) 1441 Opts.OutputFormat = DependencyOutputFormat::NMake; 1442 // Add sanitizer blacklists as extra dependencies. 1443 // They won't be discovered by the regular preprocessor, so 1444 // we let make / ninja to know about this implicit dependency. 1445 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 1446 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 1447 StringRef Val = A->getValue(); 1448 if (Val.find('=') == StringRef::npos) 1449 Opts.ExtraDeps.push_back(std::string(Val)); 1450 } 1451 if (Opts.IncludeSystemHeaders) { 1452 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 1453 StringRef Val = A->getValue(); 1454 if (Val.find('=') == StringRef::npos) 1455 Opts.ExtraDeps.push_back(std::string(Val)); 1456 } 1457 } 1458 } 1459 1460 // Propagate the extra dependencies. 1461 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) { 1462 Opts.ExtraDeps.push_back(A->getValue()); 1463 } 1464 1465 // Only the -fmodule-file=<file> form. 1466 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1467 StringRef Val = A->getValue(); 1468 if (Val.find('=') == StringRef::npos) 1469 Opts.ExtraDeps.push_back(std::string(Val)); 1470 } 1471 } 1472 1473 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 1474 // Color diagnostics default to auto ("on" if terminal supports) in the driver 1475 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 1476 // Support both clang's -f[no-]color-diagnostics and gcc's 1477 // -f[no-]diagnostics-colors[=never|always|auto]. 1478 enum { 1479 Colors_On, 1480 Colors_Off, 1481 Colors_Auto 1482 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 1483 for (auto *A : Args) { 1484 const Option &O = A->getOption(); 1485 if (O.matches(options::OPT_fcolor_diagnostics) || 1486 O.matches(options::OPT_fdiagnostics_color)) { 1487 ShowColors = Colors_On; 1488 } else if (O.matches(options::OPT_fno_color_diagnostics) || 1489 O.matches(options::OPT_fno_diagnostics_color)) { 1490 ShowColors = Colors_Off; 1491 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 1492 StringRef Value(A->getValue()); 1493 if (Value == "always") 1494 ShowColors = Colors_On; 1495 else if (Value == "never") 1496 ShowColors = Colors_Off; 1497 else if (Value == "auto") 1498 ShowColors = Colors_Auto; 1499 } 1500 } 1501 return ShowColors == Colors_On || 1502 (ShowColors == Colors_Auto && 1503 llvm::sys::Process::StandardErrHasColors()); 1504 } 1505 1506 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 1507 DiagnosticsEngine *Diags) { 1508 bool Success = true; 1509 for (const auto &Prefix : VerifyPrefixes) { 1510 // Every prefix must start with a letter and contain only alphanumeric 1511 // characters, hyphens, and underscores. 1512 auto BadChar = llvm::find_if(Prefix, [](char C) { 1513 return !isAlphanumeric(C) && C != '-' && C != '_'; 1514 }); 1515 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 1516 Success = false; 1517 if (Diags) { 1518 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 1519 Diags->Report(diag::note_drv_verify_prefix_spelling); 1520 } 1521 } 1522 } 1523 return Success; 1524 } 1525 1526 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 1527 DiagnosticsEngine *Diags, 1528 bool DefaultDiagColor) { 1529 bool Success = true; 1530 1531 Opts.DiagnosticLogFile = 1532 std::string(Args.getLastArgValue(OPT_diagnostic_log_file)); 1533 if (Arg *A = 1534 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 1535 Opts.DiagnosticSerializationFile = A->getValue(); 1536 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 1537 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 1538 Opts.Pedantic = Args.hasArg(OPT_pedantic); 1539 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 1540 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 1541 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 1542 Opts.ShowColumn = !Args.hasArg(OPT_fno_show_column); 1543 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 1544 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 1545 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 1546 Opts.ShowOptionNames = !Args.hasArg(OPT_fno_diagnostics_show_option); 1547 1548 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 1549 1550 // Default behavior is to not to show note include stacks. 1551 Opts.ShowNoteIncludeStack = false; 1552 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 1553 OPT_fno_diagnostics_show_note_include_stack)) 1554 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 1555 Opts.ShowNoteIncludeStack = true; 1556 1557 StringRef ShowOverloads = 1558 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 1559 if (ShowOverloads == "best") 1560 Opts.setShowOverloads(Ovl_Best); 1561 else if (ShowOverloads == "all") 1562 Opts.setShowOverloads(Ovl_All); 1563 else { 1564 Success = false; 1565 if (Diags) 1566 Diags->Report(diag::err_drv_invalid_value) 1567 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 1568 << ShowOverloads; 1569 } 1570 1571 StringRef ShowCategory = 1572 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1573 if (ShowCategory == "none") 1574 Opts.ShowCategories = 0; 1575 else if (ShowCategory == "id") 1576 Opts.ShowCategories = 1; 1577 else if (ShowCategory == "name") 1578 Opts.ShowCategories = 2; 1579 else { 1580 Success = false; 1581 if (Diags) 1582 Diags->Report(diag::err_drv_invalid_value) 1583 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1584 << ShowCategory; 1585 } 1586 1587 StringRef Format = 1588 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1589 if (Format == "clang") 1590 Opts.setFormat(DiagnosticOptions::Clang); 1591 else if (Format == "msvc") 1592 Opts.setFormat(DiagnosticOptions::MSVC); 1593 else if (Format == "msvc-fallback") { 1594 Opts.setFormat(DiagnosticOptions::MSVC); 1595 Opts.CLFallbackMode = true; 1596 } else if (Format == "vi") 1597 Opts.setFormat(DiagnosticOptions::Vi); 1598 else { 1599 Success = false; 1600 if (Diags) 1601 Diags->Report(diag::err_drv_invalid_value) 1602 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1603 << Format; 1604 } 1605 1606 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1607 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1608 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1609 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 1610 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 1611 if (Args.hasArg(OPT_verify)) 1612 Opts.VerifyPrefixes.push_back("expected"); 1613 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 1614 // then sort it to prepare for fast lookup using std::binary_search. 1615 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) { 1616 Opts.VerifyDiagnostics = false; 1617 Success = false; 1618 } 1619 else 1620 llvm::sort(Opts.VerifyPrefixes); 1621 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1622 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1623 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1624 Diags, DiagMask); 1625 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1626 DiagMask = DiagnosticLevelMask::All; 1627 Opts.setVerifyIgnoreUnexpected(DiagMask); 1628 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1629 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1630 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1631 Opts.MacroBacktraceLimit = 1632 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1633 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1634 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1635 Args, OPT_ftemplate_backtrace_limit, 1636 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1637 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1638 Args, OPT_fconstexpr_backtrace_limit, 1639 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1640 Opts.SpellCheckingLimit = getLastArgIntValue( 1641 Args, OPT_fspell_checking_limit, 1642 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1643 Opts.SnippetLineLimit = getLastArgIntValue( 1644 Args, OPT_fcaret_diagnostics_max_lines, 1645 DiagnosticOptions::DefaultSnippetLineLimit, Diags); 1646 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1647 DiagnosticOptions::DefaultTabStop, Diags); 1648 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1649 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1650 if (Diags) 1651 Diags->Report(diag::warn_ignoring_ftabstop_value) 1652 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1653 } 1654 Opts.MessageLength = 1655 getLastArgIntValue(Args, OPT_fmessage_length_EQ, 0, Diags); 1656 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1657 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1658 1659 return Success; 1660 } 1661 1662 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1663 Opts.WorkingDir = std::string(Args.getLastArgValue(OPT_working_directory)); 1664 } 1665 1666 /// Parse the argument to the -ftest-module-file-extension 1667 /// command-line argument. 1668 /// 1669 /// \returns true on error, false on success. 1670 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1671 std::string &BlockName, 1672 unsigned &MajorVersion, 1673 unsigned &MinorVersion, 1674 bool &Hashed, 1675 std::string &UserInfo) { 1676 SmallVector<StringRef, 5> Args; 1677 Arg.split(Args, ':', 5); 1678 if (Args.size() < 5) 1679 return true; 1680 1681 BlockName = std::string(Args[0]); 1682 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1683 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1684 if (Args[3].getAsInteger(2, Hashed)) return true; 1685 if (Args.size() > 4) 1686 UserInfo = std::string(Args[4]); 1687 return false; 1688 } 1689 1690 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1691 DiagnosticsEngine &Diags, 1692 bool &IsHeaderFile) { 1693 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1694 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1695 switch (A->getOption().getID()) { 1696 default: 1697 llvm_unreachable("Invalid option in group!"); 1698 case OPT_ast_list: 1699 Opts.ProgramAction = frontend::ASTDeclList; break; 1700 case OPT_ast_dump_all_EQ: 1701 case OPT_ast_dump_EQ: { 1702 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 1703 .CaseLower("default", ADOF_Default) 1704 .CaseLower("json", ADOF_JSON) 1705 .Default(std::numeric_limits<unsigned>::max()); 1706 1707 if (Val != std::numeric_limits<unsigned>::max()) 1708 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 1709 else { 1710 Diags.Report(diag::err_drv_invalid_value) 1711 << A->getAsString(Args) << A->getValue(); 1712 Opts.ASTDumpFormat = ADOF_Default; 1713 } 1714 LLVM_FALLTHROUGH; 1715 } 1716 case OPT_ast_dump: 1717 case OPT_ast_dump_all: 1718 case OPT_ast_dump_lookups: 1719 Opts.ProgramAction = frontend::ASTDump; break; 1720 case OPT_ast_print: 1721 Opts.ProgramAction = frontend::ASTPrint; break; 1722 case OPT_ast_view: 1723 Opts.ProgramAction = frontend::ASTView; break; 1724 case OPT_compiler_options_dump: 1725 Opts.ProgramAction = frontend::DumpCompilerOptions; break; 1726 case OPT_dump_raw_tokens: 1727 Opts.ProgramAction = frontend::DumpRawTokens; break; 1728 case OPT_dump_tokens: 1729 Opts.ProgramAction = frontend::DumpTokens; break; 1730 case OPT_S: 1731 Opts.ProgramAction = frontend::EmitAssembly; break; 1732 case OPT_emit_llvm_bc: 1733 Opts.ProgramAction = frontend::EmitBC; break; 1734 case OPT_emit_html: 1735 Opts.ProgramAction = frontend::EmitHTML; break; 1736 case OPT_emit_llvm: 1737 Opts.ProgramAction = frontend::EmitLLVM; break; 1738 case OPT_emit_llvm_only: 1739 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1740 case OPT_emit_codegen_only: 1741 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1742 case OPT_emit_obj: 1743 Opts.ProgramAction = frontend::EmitObj; break; 1744 case OPT_fixit_EQ: 1745 Opts.FixItSuffix = A->getValue(); 1746 LLVM_FALLTHROUGH; 1747 case OPT_fixit: 1748 Opts.ProgramAction = frontend::FixIt; break; 1749 case OPT_emit_module: 1750 Opts.ProgramAction = frontend::GenerateModule; break; 1751 case OPT_emit_module_interface: 1752 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1753 case OPT_emit_header_module: 1754 Opts.ProgramAction = frontend::GenerateHeaderModule; break; 1755 case OPT_emit_pch: 1756 Opts.ProgramAction = frontend::GeneratePCH; break; 1757 case OPT_emit_interface_stubs: { 1758 StringRef ArgStr = 1759 Args.hasArg(OPT_interface_stub_version_EQ) 1760 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 1761 : "experimental-ifs-v2"; 1762 if (ArgStr == "experimental-yaml-elf-v1" || 1763 ArgStr == "experimental-ifs-v1" || 1764 ArgStr == "experimental-tapi-elf-v1") { 1765 std::string ErrorMessage = 1766 "Invalid interface stub format: " + ArgStr.str() + 1767 " is deprecated."; 1768 Diags.Report(diag::err_drv_invalid_value) 1769 << "Must specify a valid interface stub format type, ie: " 1770 "-interface-stub-version=experimental-ifs-v2" 1771 << ErrorMessage; 1772 } else if (!ArgStr.startswith("experimental-ifs-")) { 1773 std::string ErrorMessage = 1774 "Invalid interface stub format: " + ArgStr.str() + "."; 1775 Diags.Report(diag::err_drv_invalid_value) 1776 << "Must specify a valid interface stub format type, ie: " 1777 "-interface-stub-version=experimental-ifs-v2" 1778 << ErrorMessage; 1779 } else { 1780 Opts.ProgramAction = frontend::GenerateInterfaceStubs; 1781 } 1782 break; 1783 } 1784 case OPT_init_only: 1785 Opts.ProgramAction = frontend::InitOnly; break; 1786 case OPT_fsyntax_only: 1787 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1788 case OPT_module_file_info: 1789 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1790 case OPT_verify_pch: 1791 Opts.ProgramAction = frontend::VerifyPCH; break; 1792 case OPT_print_preamble: 1793 Opts.ProgramAction = frontend::PrintPreamble; break; 1794 case OPT_E: 1795 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1796 case OPT_templight_dump: 1797 Opts.ProgramAction = frontend::TemplightDump; break; 1798 case OPT_rewrite_macros: 1799 Opts.ProgramAction = frontend::RewriteMacros; break; 1800 case OPT_rewrite_objc: 1801 Opts.ProgramAction = frontend::RewriteObjC; break; 1802 case OPT_rewrite_test: 1803 Opts.ProgramAction = frontend::RewriteTest; break; 1804 case OPT_analyze: 1805 Opts.ProgramAction = frontend::RunAnalysis; break; 1806 case OPT_migrate: 1807 Opts.ProgramAction = frontend::MigrateSource; break; 1808 case OPT_Eonly: 1809 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1810 case OPT_print_dependency_directives_minimized_source: 1811 Opts.ProgramAction = 1812 frontend::PrintDependencyDirectivesSourceMinimizerOutput; 1813 break; 1814 } 1815 } 1816 1817 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1818 Opts.Plugins.emplace_back(A->getValue(0)); 1819 Opts.ProgramAction = frontend::PluginAction; 1820 Opts.ActionName = A->getValue(); 1821 } 1822 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1823 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 1824 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1825 1826 for (const std::string &Arg : 1827 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1828 std::string BlockName; 1829 unsigned MajorVersion; 1830 unsigned MinorVersion; 1831 bool Hashed; 1832 std::string UserInfo; 1833 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1834 MinorVersion, Hashed, UserInfo)) { 1835 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1836 1837 continue; 1838 } 1839 1840 // Add the testing module file extension. 1841 Opts.ModuleFileExtensions.push_back( 1842 std::make_shared<TestModuleFileExtension>( 1843 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 1844 } 1845 1846 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1847 Opts.CodeCompletionAt = 1848 ParsedSourceLocation::FromString(A->getValue()); 1849 if (Opts.CodeCompletionAt.FileName.empty()) 1850 Diags.Report(diag::err_drv_invalid_value) 1851 << A->getAsString(Args) << A->getValue(); 1852 } 1853 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1854 1855 Opts.OutputFile = std::string(Args.getLastArgValue(OPT_o)); 1856 Opts.Plugins = Args.getAllArgValues(OPT_load); 1857 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1858 Opts.ShowHelp = Args.hasArg(OPT_help); 1859 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1860 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1861 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus); 1862 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace); 1863 Opts.TimeTraceGranularity = getLastArgIntValue( 1864 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags); 1865 Opts.ShowVersion = Args.hasArg(OPT_version); 1866 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1867 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1868 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1869 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1870 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1871 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1872 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 1873 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 1874 Opts.ASTDumpFilter = std::string(Args.getLastArgValue(OPT_ast_dump_filter)); 1875 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1876 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1877 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1878 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1879 // Only the -fmodule-file=<file> form. 1880 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 1881 StringRef Val = A->getValue(); 1882 if (Val.find('=') == StringRef::npos) 1883 Opts.ModuleFiles.push_back(std::string(Val)); 1884 } 1885 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1886 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1887 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1888 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file); 1889 Opts.IsSystemModule = Args.hasArg(OPT_fsystem_module); 1890 1891 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 1892 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 1893 << "-emit-module"; 1894 1895 Opts.CodeCompleteOpts.IncludeMacros 1896 = Args.hasArg(OPT_code_completion_macros); 1897 Opts.CodeCompleteOpts.IncludeCodePatterns 1898 = Args.hasArg(OPT_code_completion_patterns); 1899 Opts.CodeCompleteOpts.IncludeGlobals 1900 = !Args.hasArg(OPT_no_code_completion_globals); 1901 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls 1902 = !Args.hasArg(OPT_no_code_completion_ns_level_decls); 1903 Opts.CodeCompleteOpts.IncludeBriefComments 1904 = Args.hasArg(OPT_code_completion_brief_comments); 1905 Opts.CodeCompleteOpts.IncludeFixIts 1906 = Args.hasArg(OPT_code_completion_with_fixits); 1907 1908 Opts.OverrideRecordLayoutsFile = 1909 std::string(Args.getLastArgValue(OPT_foverride_record_layout_EQ)); 1910 Opts.AuxTriple = std::string(Args.getLastArgValue(OPT_aux_triple)); 1911 if (Args.hasArg(OPT_aux_target_cpu)) 1912 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 1913 if (Args.hasArg(OPT_aux_target_feature)) 1914 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 1915 Opts.StatsFile = std::string(Args.getLastArgValue(OPT_stats_file)); 1916 1917 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1918 OPT_arcmt_modify, 1919 OPT_arcmt_migrate)) { 1920 switch (A->getOption().getID()) { 1921 default: 1922 llvm_unreachable("missed a case"); 1923 case OPT_arcmt_check: 1924 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1925 break; 1926 case OPT_arcmt_modify: 1927 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1928 break; 1929 case OPT_arcmt_migrate: 1930 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1931 break; 1932 } 1933 } 1934 Opts.MTMigrateDir = 1935 std::string(Args.getLastArgValue(OPT_mt_migrate_directory)); 1936 Opts.ARCMTMigrateReportOut = 1937 std::string(Args.getLastArgValue(OPT_arcmt_migrate_report_output)); 1938 Opts.ARCMTMigrateEmitARCErrors 1939 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1940 1941 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1942 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1943 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1944 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1945 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1946 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1947 if (Args.hasArg(OPT_objcmt_migrate_property)) 1948 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1949 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1950 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1951 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1952 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1953 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1954 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1955 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1956 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1957 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1958 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1959 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1960 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1961 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1962 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1963 if (Args.hasArg(OPT_objcmt_atomic_property)) 1964 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1965 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1966 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1967 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1968 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1969 if (Args.hasArg(OPT_objcmt_migrate_all)) 1970 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1971 1972 Opts.ObjCMTWhiteListPath = 1973 std::string(Args.getLastArgValue(OPT_objcmt_whitelist_dir_path)); 1974 1975 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1976 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1977 Diags.Report(diag::err_drv_argument_not_allowed_with) 1978 << "ARC migration" << "ObjC migration"; 1979 } 1980 1981 InputKind DashX(Language::Unknown); 1982 if (const Arg *A = Args.getLastArg(OPT_x)) { 1983 StringRef XValue = A->getValue(); 1984 1985 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 1986 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 1987 bool Preprocessed = XValue.consume_back("-cpp-output"); 1988 bool ModuleMap = XValue.consume_back("-module-map"); 1989 IsHeaderFile = 1990 !Preprocessed && !ModuleMap && XValue.consume_back("-header"); 1991 1992 // Principal languages. 1993 DashX = llvm::StringSwitch<InputKind>(XValue) 1994 .Case("c", Language::C) 1995 .Case("cl", Language::OpenCL) 1996 .Case("cuda", Language::CUDA) 1997 .Case("hip", Language::HIP) 1998 .Case("c++", Language::CXX) 1999 .Case("objective-c", Language::ObjC) 2000 .Case("objective-c++", Language::ObjCXX) 2001 .Case("renderscript", Language::RenderScript) 2002 .Default(Language::Unknown); 2003 2004 // "objc[++]-cpp-output" is an acceptable synonym for 2005 // "objective-c[++]-cpp-output". 2006 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2007 DashX = llvm::StringSwitch<InputKind>(XValue) 2008 .Case("objc", Language::ObjC) 2009 .Case("objc++", Language::ObjCXX) 2010 .Default(Language::Unknown); 2011 2012 // Some special cases cannot be combined with suffixes. 2013 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2014 DashX = llvm::StringSwitch<InputKind>(XValue) 2015 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2016 .Case("assembler-with-cpp", Language::Asm) 2017 .Cases("ast", "pcm", 2018 InputKind(Language::Unknown, InputKind::Precompiled)) 2019 .Case("ir", Language::LLVM_IR) 2020 .Default(Language::Unknown); 2021 2022 if (DashX.isUnknown()) 2023 Diags.Report(diag::err_drv_invalid_value) 2024 << A->getAsString(Args) << A->getValue(); 2025 2026 if (Preprocessed) 2027 DashX = DashX.getPreprocessed(); 2028 if (ModuleMap) 2029 DashX = DashX.withFormat(InputKind::ModuleMap); 2030 } 2031 2032 // '-' is the default input if none is given. 2033 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2034 Opts.Inputs.clear(); 2035 if (Inputs.empty()) 2036 Inputs.push_back("-"); 2037 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2038 InputKind IK = DashX; 2039 if (IK.isUnknown()) { 2040 IK = FrontendOptions::getInputKindForExtension( 2041 StringRef(Inputs[i]).rsplit('.').second); 2042 // FIXME: Warn on this? 2043 if (IK.isUnknown()) 2044 IK = Language::C; 2045 // FIXME: Remove this hack. 2046 if (i == 0) 2047 DashX = IK; 2048 } 2049 2050 bool IsSystem = false; 2051 2052 // The -emit-module action implicitly takes a module map. 2053 if (Opts.ProgramAction == frontend::GenerateModule && 2054 IK.getFormat() == InputKind::Source) { 2055 IK = IK.withFormat(InputKind::ModuleMap); 2056 IsSystem = Opts.IsSystemModule; 2057 } 2058 2059 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2060 } 2061 2062 return DashX; 2063 } 2064 2065 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2066 void *MainAddr) { 2067 std::string ClangExecutable = 2068 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2069 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2070 } 2071 2072 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2073 const std::string &WorkingDir) { 2074 Opts.Sysroot = std::string(Args.getLastArgValue(OPT_isysroot, "/")); 2075 Opts.Verbose = Args.hasArg(OPT_v); 2076 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 2077 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 2078 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 2079 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2080 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2081 Opts.ResourceDir = std::string(Args.getLastArgValue(OPT_resource_dir)); 2082 2083 // Canonicalize -fmodules-cache-path before storing it. 2084 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2085 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2086 if (WorkingDir.empty()) 2087 llvm::sys::fs::make_absolute(P); 2088 else 2089 llvm::sys::fs::make_absolute(WorkingDir, P); 2090 } 2091 llvm::sys::path::remove_dots(P); 2092 Opts.ModuleCachePath = std::string(P.str()); 2093 2094 Opts.ModuleUserBuildPath = 2095 std::string(Args.getLastArgValue(OPT_fmodules_user_build_path)); 2096 // Only the -fmodule-file=<name>=<file> form. 2097 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2098 StringRef Val = A->getValue(); 2099 if (Val.find('=') != StringRef::npos){ 2100 auto Split = Val.split('='); 2101 Opts.PrebuiltModuleFiles.insert( 2102 {std::string(Split.first), std::string(Split.second)}); 2103 } 2104 } 2105 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2106 Opts.AddPrebuiltModulePath(A->getValue()); 2107 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 2108 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content); 2109 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash); 2110 Opts.ModulesValidateDiagnosticOptions = 2111 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 2112 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 2113 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 2114 Opts.ModuleCachePruneInterval = 2115 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 2116 Opts.ModuleCachePruneAfter = 2117 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 2118 Opts.ModulesValidateOncePerBuildSession = 2119 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 2120 Opts.BuildSessionTimestamp = 2121 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 2122 Opts.ModulesValidateSystemHeaders = 2123 Args.hasArg(OPT_fmodules_validate_system_headers); 2124 Opts.ValidateASTInputFilesContent = 2125 Args.hasArg(OPT_fvalidate_ast_input_files_content); 2126 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 2127 Opts.ModuleFormat = A->getValue(); 2128 2129 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2130 StringRef MacroDef = A->getValue(); 2131 Opts.ModulesIgnoreMacros.insert( 2132 llvm::CachedHashString(MacroDef.split('=').first)); 2133 } 2134 2135 // Add -I..., -F..., and -index-header-map options in order. 2136 bool IsIndexHeaderMap = false; 2137 bool IsSysrootSpecified = 2138 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2139 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2140 if (A->getOption().matches(OPT_index_header_map)) { 2141 // -index-header-map applies to the next -I or -F. 2142 IsIndexHeaderMap = true; 2143 continue; 2144 } 2145 2146 frontend::IncludeDirGroup Group = 2147 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2148 2149 bool IsFramework = A->getOption().matches(OPT_F); 2150 std::string Path = A->getValue(); 2151 2152 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2153 SmallString<32> Buffer; 2154 llvm::sys::path::append(Buffer, Opts.Sysroot, 2155 llvm::StringRef(A->getValue()).substr(1)); 2156 Path = std::string(Buffer.str()); 2157 } 2158 2159 Opts.AddPath(Path, Group, IsFramework, 2160 /*IgnoreSysroot*/ true); 2161 IsIndexHeaderMap = false; 2162 } 2163 2164 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2165 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2166 for (const auto *A : 2167 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2168 if (A->getOption().matches(OPT_iprefix)) 2169 Prefix = A->getValue(); 2170 else if (A->getOption().matches(OPT_iwithprefix)) 2171 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2172 else 2173 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2174 } 2175 2176 for (const auto *A : Args.filtered(OPT_idirafter)) 2177 Opts.AddPath(A->getValue(), frontend::After, false, true); 2178 for (const auto *A : Args.filtered(OPT_iquote)) 2179 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2180 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2181 Opts.AddPath(A->getValue(), frontend::System, false, 2182 !A->getOption().matches(OPT_iwithsysroot)); 2183 for (const auto *A : Args.filtered(OPT_iframework)) 2184 Opts.AddPath(A->getValue(), frontend::System, true, true); 2185 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 2186 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 2187 /*IgnoreSysRoot=*/false); 2188 2189 // Add the paths for the various language specific isystem flags. 2190 for (const auto *A : Args.filtered(OPT_c_isystem)) 2191 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 2192 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 2193 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 2194 for (const auto *A : Args.filtered(OPT_objc_isystem)) 2195 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 2196 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 2197 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 2198 2199 // Add the internal paths from a driver that detects standard include paths. 2200 for (const auto *A : 2201 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 2202 frontend::IncludeDirGroup Group = frontend::System; 2203 if (A->getOption().matches(OPT_internal_externc_isystem)) 2204 Group = frontend::ExternCSystem; 2205 Opts.AddPath(A->getValue(), Group, false, true); 2206 } 2207 2208 // Add the path prefixes which are implicitly treated as being system headers. 2209 for (const auto *A : 2210 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 2211 Opts.AddSystemHeaderPrefix( 2212 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 2213 2214 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 2215 Opts.AddVFSOverlayFile(A->getValue()); 2216 } 2217 2218 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 2219 const llvm::Triple &T, 2220 PreprocessorOptions &PPOpts, 2221 LangStandard::Kind LangStd) { 2222 // Set some properties which depend solely on the input kind; it would be nice 2223 // to move these to the language standard, and have the driver resolve the 2224 // input kind + language standard. 2225 // 2226 // FIXME: Perhaps a better model would be for a single source file to have 2227 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 2228 // simultaneously active? 2229 if (IK.getLanguage() == Language::Asm) { 2230 Opts.AsmPreprocessor = 1; 2231 } else if (IK.isObjectiveC()) { 2232 Opts.ObjC = 1; 2233 } 2234 2235 if (LangStd == LangStandard::lang_unspecified) { 2236 // Based on the base language, pick one. 2237 switch (IK.getLanguage()) { 2238 case Language::Unknown: 2239 case Language::LLVM_IR: 2240 llvm_unreachable("Invalid input kind!"); 2241 case Language::OpenCL: 2242 LangStd = LangStandard::lang_opencl10; 2243 break; 2244 case Language::CUDA: 2245 LangStd = LangStandard::lang_cuda; 2246 break; 2247 case Language::Asm: 2248 case Language::C: 2249 #if defined(CLANG_DEFAULT_STD_C) 2250 LangStd = CLANG_DEFAULT_STD_C; 2251 #else 2252 // The PS4 uses C99 as the default C standard. 2253 if (T.isPS4()) 2254 LangStd = LangStandard::lang_gnu99; 2255 else 2256 LangStd = LangStandard::lang_gnu17; 2257 #endif 2258 break; 2259 case Language::ObjC: 2260 #if defined(CLANG_DEFAULT_STD_C) 2261 LangStd = CLANG_DEFAULT_STD_C; 2262 #else 2263 LangStd = LangStandard::lang_gnu11; 2264 #endif 2265 break; 2266 case Language::CXX: 2267 case Language::ObjCXX: 2268 #if defined(CLANG_DEFAULT_STD_CXX) 2269 LangStd = CLANG_DEFAULT_STD_CXX; 2270 #else 2271 LangStd = LangStandard::lang_gnucxx14; 2272 #endif 2273 break; 2274 case Language::RenderScript: 2275 LangStd = LangStandard::lang_c99; 2276 break; 2277 case Language::HIP: 2278 LangStd = LangStandard::lang_hip; 2279 break; 2280 } 2281 } 2282 2283 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2284 Opts.LineComment = Std.hasLineComments(); 2285 Opts.C99 = Std.isC99(); 2286 Opts.C11 = Std.isC11(); 2287 Opts.C17 = Std.isC17(); 2288 Opts.C2x = Std.isC2x(); 2289 Opts.CPlusPlus = Std.isCPlusPlus(); 2290 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 2291 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 2292 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 2293 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 2294 Opts.Digraphs = Std.hasDigraphs(); 2295 Opts.GNUMode = Std.isGNUMode(); 2296 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus; 2297 Opts.GNUCVersion = 0; 2298 Opts.HexFloats = Std.hasHexFloats(); 2299 Opts.ImplicitInt = Std.hasImplicitInt(); 2300 2301 // Set OpenCL Version. 2302 Opts.OpenCL = Std.isOpenCL(); 2303 if (LangStd == LangStandard::lang_opencl10) 2304 Opts.OpenCLVersion = 100; 2305 else if (LangStd == LangStandard::lang_opencl11) 2306 Opts.OpenCLVersion = 110; 2307 else if (LangStd == LangStandard::lang_opencl12) 2308 Opts.OpenCLVersion = 120; 2309 else if (LangStd == LangStandard::lang_opencl20) 2310 Opts.OpenCLVersion = 200; 2311 else if (LangStd == LangStandard::lang_openclcpp) 2312 Opts.OpenCLCPlusPlusVersion = 100; 2313 2314 // OpenCL has some additional defaults. 2315 if (Opts.OpenCL) { 2316 Opts.AltiVec = 0; 2317 Opts.ZVector = 0; 2318 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None); 2319 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 2320 Opts.NativeHalfType = 1; 2321 Opts.NativeHalfArgsAndReturns = 1; 2322 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 2323 2324 // Include default header file for OpenCL. 2325 if (Opts.IncludeDefaultHeader) { 2326 if (Opts.DeclareOpenCLBuiltins) { 2327 // Only include base header file for builtin types and constants. 2328 PPOpts.Includes.push_back("opencl-c-base.h"); 2329 } else { 2330 PPOpts.Includes.push_back("opencl-c.h"); 2331 } 2332 } 2333 } 2334 2335 Opts.HIP = IK.getLanguage() == Language::HIP; 2336 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 2337 if (Opts.CUDA) 2338 // Set default FP_CONTRACT to FAST. 2339 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 2340 2341 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 2342 if (Opts.RenderScript) { 2343 Opts.NativeHalfType = 1; 2344 Opts.NativeHalfArgsAndReturns = 1; 2345 } 2346 2347 // OpenCL and C++ both have bool, true, false keywords. 2348 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 2349 2350 // OpenCL has half keyword 2351 Opts.Half = Opts.OpenCL; 2352 2353 // C++ has wchar_t keyword. 2354 Opts.WChar = Opts.CPlusPlus; 2355 2356 Opts.GNUKeywords = Opts.GNUMode; 2357 Opts.CXXOperatorNames = Opts.CPlusPlus; 2358 2359 Opts.AlignedAllocation = Opts.CPlusPlus17; 2360 2361 Opts.DollarIdents = !Opts.AsmPreprocessor; 2362 2363 // Enable [[]] attributes in C++11 and C2x by default. 2364 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x; 2365 } 2366 2367 /// Attempt to parse a visibility value out of the given argument. 2368 static Visibility parseVisibility(Arg *arg, ArgList &args, 2369 DiagnosticsEngine &diags) { 2370 StringRef value = arg->getValue(); 2371 if (value == "default") { 2372 return DefaultVisibility; 2373 } else if (value == "hidden" || value == "internal") { 2374 return HiddenVisibility; 2375 } else if (value == "protected") { 2376 // FIXME: diagnose if target does not support protected visibility 2377 return ProtectedVisibility; 2378 } 2379 2380 diags.Report(diag::err_drv_invalid_value) 2381 << arg->getAsString(args) << value; 2382 return DefaultVisibility; 2383 } 2384 2385 /// Check if input file kind and language standard are compatible. 2386 static bool IsInputCompatibleWithStandard(InputKind IK, 2387 const LangStandard &S) { 2388 switch (IK.getLanguage()) { 2389 case Language::Unknown: 2390 case Language::LLVM_IR: 2391 llvm_unreachable("should not parse language flags for this input"); 2392 2393 case Language::C: 2394 case Language::ObjC: 2395 case Language::RenderScript: 2396 return S.getLanguage() == Language::C; 2397 2398 case Language::OpenCL: 2399 return S.getLanguage() == Language::OpenCL; 2400 2401 case Language::CXX: 2402 case Language::ObjCXX: 2403 return S.getLanguage() == Language::CXX; 2404 2405 case Language::CUDA: 2406 // FIXME: What -std= values should be permitted for CUDA compilations? 2407 return S.getLanguage() == Language::CUDA || 2408 S.getLanguage() == Language::CXX; 2409 2410 case Language::HIP: 2411 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 2412 2413 case Language::Asm: 2414 // Accept (and ignore) all -std= values. 2415 // FIXME: The -std= value is not ignored; it affects the tokenization 2416 // and preprocessing rules if we're preprocessing this asm input. 2417 return true; 2418 } 2419 2420 llvm_unreachable("unexpected input language"); 2421 } 2422 2423 /// Get language name for given input kind. 2424 static const StringRef GetInputKindName(InputKind IK) { 2425 switch (IK.getLanguage()) { 2426 case Language::C: 2427 return "C"; 2428 case Language::ObjC: 2429 return "Objective-C"; 2430 case Language::CXX: 2431 return "C++"; 2432 case Language::ObjCXX: 2433 return "Objective-C++"; 2434 case Language::OpenCL: 2435 return "OpenCL"; 2436 case Language::CUDA: 2437 return "CUDA"; 2438 case Language::RenderScript: 2439 return "RenderScript"; 2440 case Language::HIP: 2441 return "HIP"; 2442 2443 case Language::Asm: 2444 return "Asm"; 2445 case Language::LLVM_IR: 2446 return "LLVM IR"; 2447 2448 case Language::Unknown: 2449 break; 2450 } 2451 llvm_unreachable("unknown input language"); 2452 } 2453 2454 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 2455 const TargetOptions &TargetOpts, 2456 PreprocessorOptions &PPOpts, 2457 DiagnosticsEngine &Diags) { 2458 // FIXME: Cleanup per-file based stuff. 2459 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 2460 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 2461 LangStd = LangStandard::getLangKind(A->getValue()); 2462 if (LangStd == LangStandard::lang_unspecified) { 2463 Diags.Report(diag::err_drv_invalid_value) 2464 << A->getAsString(Args) << A->getValue(); 2465 // Report supported standards with short description. 2466 for (unsigned KindValue = 0; 2467 KindValue != LangStandard::lang_unspecified; 2468 ++KindValue) { 2469 const LangStandard &Std = LangStandard::getLangStandardForKind( 2470 static_cast<LangStandard::Kind>(KindValue)); 2471 if (IsInputCompatibleWithStandard(IK, Std)) { 2472 auto Diag = Diags.Report(diag::note_drv_use_standard); 2473 Diag << Std.getName() << Std.getDescription(); 2474 unsigned NumAliases = 0; 2475 #define LANGSTANDARD(id, name, lang, desc, features) 2476 #define LANGSTANDARD_ALIAS(id, alias) \ 2477 if (KindValue == LangStandard::lang_##id) ++NumAliases; 2478 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2479 #include "clang/Basic/LangStandards.def" 2480 Diag << NumAliases; 2481 #define LANGSTANDARD(id, name, lang, desc, features) 2482 #define LANGSTANDARD_ALIAS(id, alias) \ 2483 if (KindValue == LangStandard::lang_##id) Diag << alias; 2484 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 2485 #include "clang/Basic/LangStandards.def" 2486 } 2487 } 2488 } else { 2489 // Valid standard, check to make sure language and standard are 2490 // compatible. 2491 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 2492 if (!IsInputCompatibleWithStandard(IK, Std)) { 2493 Diags.Report(diag::err_drv_argument_not_allowed_with) 2494 << A->getAsString(Args) << GetInputKindName(IK); 2495 } 2496 } 2497 } 2498 2499 if (Args.hasArg(OPT_fno_dllexport_inlines)) 2500 Opts.DllExportInlines = false; 2501 2502 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2503 StringRef Name = A->getValue(); 2504 if (Name == "full" || Name == "branch") { 2505 Opts.CFProtectionBranch = 1; 2506 } 2507 } 2508 // -cl-std only applies for OpenCL language standards. 2509 // Override the -std option in this case. 2510 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 2511 LangStandard::Kind OpenCLLangStd 2512 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 2513 .Cases("cl", "CL", LangStandard::lang_opencl10) 2514 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 2515 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 2516 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 2517 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 2518 .Default(LangStandard::lang_unspecified); 2519 2520 if (OpenCLLangStd == LangStandard::lang_unspecified) { 2521 Diags.Report(diag::err_drv_invalid_value) 2522 << A->getAsString(Args) << A->getValue(); 2523 } 2524 else 2525 LangStd = OpenCLLangStd; 2526 } 2527 2528 Opts.SYCL = Args.hasArg(options::OPT_fsycl); 2529 Opts.SYCLIsDevice = Opts.SYCL && Args.hasArg(options::OPT_fsycl_is_device); 2530 if (Opts.SYCL) { 2531 // -sycl-std applies to any SYCL source, not only those containing kernels, 2532 // but also those using the SYCL API 2533 if (const Arg *A = Args.getLastArg(OPT_sycl_std_EQ)) { 2534 Opts.SYCLVersion = llvm::StringSwitch<unsigned>(A->getValue()) 2535 .Cases("2017", "1.2.1", "121", "sycl-1.2.1", 2017) 2536 .Default(0U); 2537 2538 if (Opts.SYCLVersion == 0U) { 2539 // User has passed an invalid value to the flag, this is an error 2540 Diags.Report(diag::err_drv_invalid_value) 2541 << A->getAsString(Args) << A->getValue(); 2542 } 2543 } 2544 } 2545 2546 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 2547 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 2548 2549 llvm::Triple T(TargetOpts.Triple); 2550 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 2551 2552 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 2553 // This option should be deprecated for CL > 1.0 because 2554 // this option was added for compatibility with OpenCL 1.0. 2555 if (Args.getLastArg(OPT_cl_strict_aliasing) 2556 && Opts.OpenCLVersion > 100) { 2557 Diags.Report(diag::warn_option_invalid_ocl_version) 2558 << Opts.getOpenCLVersionTuple().getAsString() 2559 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 2560 } 2561 2562 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 2563 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 2564 // while a subset (the non-C++ GNU keywords) is provided by GCC's 2565 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 2566 // name, as it doesn't seem a useful distinction. 2567 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 2568 Opts.GNUKeywords); 2569 2570 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs); 2571 2572 if (Args.hasArg(OPT_fno_operator_names)) 2573 Opts.CXXOperatorNames = 0; 2574 2575 if (Args.hasArg(OPT_fcuda_is_device)) 2576 Opts.CUDAIsDevice = 1; 2577 2578 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 2579 Opts.CUDAAllowVariadicFunctions = 1; 2580 2581 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 2582 Opts.CUDAHostDeviceConstexpr = 0; 2583 2584 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 2585 Opts.CUDADeviceApproxTranscendentals = 1; 2586 2587 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc); 2588 if (Args.hasArg(OPT_fgpu_allow_device_init)) { 2589 if (Opts.HIP) 2590 Opts.GPUAllowDeviceInit = 1; 2591 else 2592 Diags.Report(diag::warn_ignored_hip_only_option) 2593 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 2594 } 2595 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api); 2596 if (Opts.HIP) 2597 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue( 2598 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock); 2599 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ)) 2600 Diags.Report(diag::warn_ignored_hip_only_option) 2601 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 2602 2603 if (Opts.ObjC) { 2604 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 2605 StringRef value = arg->getValue(); 2606 if (Opts.ObjCRuntime.tryParse(value)) 2607 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 2608 } 2609 2610 if (Args.hasArg(OPT_fobjc_gc_only)) 2611 Opts.setGC(LangOptions::GCOnly); 2612 else if (Args.hasArg(OPT_fobjc_gc)) 2613 Opts.setGC(LangOptions::HybridGC); 2614 else if (Args.hasArg(OPT_fobjc_arc)) { 2615 Opts.ObjCAutoRefCount = 1; 2616 if (!Opts.ObjCRuntime.allowsARC()) 2617 Diags.Report(diag::err_arc_unsupported_on_runtime); 2618 } 2619 2620 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 2621 // whether the feature is actually enabled. This is predominantly 2622 // determined by -fobjc-runtime, but we allow it to be overridden 2623 // from the command line for testing purposes. 2624 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 2625 Opts.ObjCWeakRuntime = 1; 2626 else 2627 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 2628 2629 // ObjCWeak determines whether __weak is actually enabled. 2630 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 2631 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 2632 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 2633 assert(!Opts.ObjCWeak); 2634 } else if (Opts.getGC() != LangOptions::NonGC) { 2635 Diags.Report(diag::err_objc_weak_with_gc); 2636 } else if (!Opts.ObjCWeakRuntime) { 2637 Diags.Report(diag::err_objc_weak_unsupported); 2638 } else { 2639 Opts.ObjCWeak = 1; 2640 } 2641 } else if (Opts.ObjCAutoRefCount) { 2642 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 2643 } 2644 2645 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 2646 Opts.ObjCInferRelatedResultType = 0; 2647 2648 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 2649 Opts.ObjCSubscriptingLegacyRuntime = 2650 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 2651 } 2652 2653 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 2654 // Check that the version has 1 to 3 components and the minor and patch 2655 // versions fit in two decimal digits. 2656 VersionTuple GNUCVer; 2657 bool Invalid = GNUCVer.tryParse(A->getValue()); 2658 unsigned Major = GNUCVer.getMajor(); 2659 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 2660 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 2661 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 2662 Diags.Report(diag::err_drv_invalid_value) 2663 << A->getAsString(Args) << A->getValue(); 2664 } 2665 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 2666 } 2667 2668 if (Args.hasArg(OPT_fgnu89_inline)) { 2669 if (Opts.CPlusPlus) 2670 Diags.Report(diag::err_drv_argument_not_allowed_with) 2671 << "-fgnu89-inline" << GetInputKindName(IK); 2672 else 2673 Opts.GNUInline = 1; 2674 } 2675 2676 if (Args.hasArg(OPT_fapple_kext)) { 2677 if (!Opts.CPlusPlus) 2678 Diags.Report(diag::warn_c_kext); 2679 else 2680 Opts.AppleKext = 1; 2681 } 2682 2683 if (Args.hasArg(OPT_print_ivar_layout)) 2684 Opts.ObjCGCBitmapPrint = 1; 2685 2686 if (Args.hasArg(OPT_fno_constant_cfstrings)) 2687 Opts.NoConstantCFStrings = 1; 2688 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ)) 2689 Opts.CFRuntime = 2690 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue()) 2691 .Cases("unspecified", "standalone", "objc", 2692 LangOptions::CoreFoundationABI::ObjectiveC) 2693 .Cases("swift", "swift-5.0", 2694 LangOptions::CoreFoundationABI::Swift5_0) 2695 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2) 2696 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1) 2697 .Default(LangOptions::CoreFoundationABI::ObjectiveC); 2698 2699 if (Args.hasArg(OPT_fzvector)) 2700 Opts.ZVector = 1; 2701 2702 if (Args.hasArg(OPT_pthread)) 2703 Opts.POSIXThreads = 1; 2704 2705 // The value-visibility mode defaults to "default". 2706 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 2707 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 2708 } else { 2709 Opts.setValueVisibilityMode(DefaultVisibility); 2710 } 2711 2712 // The type-visibility mode defaults to the value-visibility mode. 2713 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 2714 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 2715 } else { 2716 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 2717 } 2718 2719 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 2720 Opts.InlineVisibilityHidden = 1; 2721 2722 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden)) 2723 Opts.GlobalAllocationFunctionVisibilityHidden = 1; 2724 2725 if (Args.hasArg(OPT_fapply_global_visibility_to_externs)) 2726 Opts.SetVisibilityForExternDecls = 1; 2727 2728 if (Args.hasArg(OPT_ftrapv)) { 2729 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 2730 // Set the handler, if one is specified. 2731 Opts.OverflowHandler = 2732 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 2733 } 2734 else if (Args.hasArg(OPT_fwrapv)) 2735 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 2736 2737 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 2738 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 2739 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 2740 Opts.MSCompatibilityVersion = 0; 2741 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 2742 VersionTuple VT; 2743 if (VT.tryParse(A->getValue())) 2744 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2745 << A->getValue(); 2746 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 2747 VT.getMinor().getValueOr(0) * 100000 + 2748 VT.getSubminor().getValueOr(0); 2749 } 2750 2751 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 2752 // is specified, or -std is set to a conforming mode. 2753 // Trigraphs are disabled by default in c++1z onwards. 2754 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17; 2755 Opts.Trigraphs = 2756 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 2757 2758 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 2759 OPT_fno_dollars_in_identifiers, 2760 Opts.DollarIdents); 2761 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 2762 Opts.setVtorDispMode( 2763 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags))); 2764 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 2765 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 2766 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 2767 Opts.ConstStrings); 2768 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) { 2769 using LaxKind = LangOptions::LaxVectorConversionKind; 2770 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue()) 2771 .Case("none", LaxKind::None) 2772 .Case("integer", LaxKind::Integer) 2773 .Case("all", LaxKind::All) 2774 .Default(llvm::None)) 2775 Opts.setLaxVectorConversions(*Kind); 2776 else 2777 Diags.Report(diag::err_drv_invalid_value) 2778 << A->getAsString(Args) << A->getValue(); 2779 } 2780 if (Args.hasArg(OPT_fno_threadsafe_statics)) 2781 Opts.ThreadsafeStatics = 0; 2782 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 2783 Opts.IgnoreExceptions = Args.hasArg(OPT_fignore_exceptions); 2784 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 2785 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 2786 2787 // -ffixed-point 2788 Opts.FixedPoint = 2789 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) && 2790 !Opts.CPlusPlus; 2791 Opts.PaddingOnUnsignedFixedPoint = 2792 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point, 2793 OPT_fno_padding_on_unsigned_fixed_point, 2794 /*Default=*/false) && 2795 Opts.FixedPoint; 2796 2797 // Handle exception personalities 2798 Arg *A = Args.getLastArg( 2799 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions, 2800 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions); 2801 if (A) { 2802 const Option &Opt = A->getOption(); 2803 llvm::Triple T(TargetOpts.Triple); 2804 if (T.isWindowsMSVCEnvironment()) 2805 Diags.Report(diag::err_fe_invalid_exception_model) 2806 << Opt.getName() << T.str(); 2807 2808 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions); 2809 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions); 2810 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions); 2811 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions); 2812 } 2813 2814 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 2815 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 2816 2817 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 2818 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 2819 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 2820 && Opts.OpenCLVersion == 200); 2821 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 2822 Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts); 2823 2824 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 2825 Args.hasArg(OPT_fconvergent_functions); 2826 2827 Opts.DoubleSquareBracketAttributes = 2828 Args.hasFlag(OPT_fdouble_square_bracket_attributes, 2829 OPT_fno_double_square_bracket_attributes, 2830 Opts.DoubleSquareBracketAttributes); 2831 2832 Opts.CPlusPlusModules = Opts.CPlusPlus20; 2833 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 2834 Opts.Modules = 2835 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules; 2836 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 2837 Opts.ModulesDeclUse = 2838 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 2839 // FIXME: We only need this in C++ modules / Modules TS if we might textually 2840 // enter a different module (eg, when building a header unit). 2841 Opts.ModulesLocalVisibility = 2842 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS || 2843 Opts.CPlusPlusModules; 2844 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen); 2845 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo); 2846 Opts.ModulesSearchAll = Opts.Modules && 2847 !Args.hasArg(OPT_fno_modules_search_all) && 2848 Args.hasArg(OPT_fmodules_search_all); 2849 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 2850 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 2851 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 2852 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 2853 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20); 2854 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) { 2855 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue()) 2856 .Case("char", 1) 2857 .Case("short", 2) 2858 .Case("int", 4) 2859 .Default(0); 2860 if (Opts.WCharSize == 0) 2861 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue(); 2862 } 2863 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true); 2864 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 2865 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 2866 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 2867 if (!Opts.NoBuiltin) 2868 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 2869 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 2870 Opts.RelaxedTemplateTemplateArgs = 2871 Args.hasArg(OPT_frelaxed_template_template_args); 2872 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 2873 Opts.AlignedAllocation = 2874 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 2875 Opts.AlignedAllocation); 2876 Opts.AlignedAllocationUnavailable = 2877 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable); 2878 Opts.NewAlignOverride = 2879 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 2880 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 2881 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 2882 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 2883 << A->getValue(); 2884 Opts.NewAlignOverride = 0; 2885 } 2886 Opts.ConceptSatisfactionCaching = 2887 !Args.hasArg(OPT_fno_concept_satisfaction_caching); 2888 if (Args.hasArg(OPT_fconcepts_ts)) 2889 Diags.Report(diag::warn_fe_concepts_ts_flag); 2890 Opts.RecoveryAST = 2891 Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false); 2892 Opts.RecoveryASTType = 2893 + Args.hasFlag(OPT_frecovery_ast_type, OPT_fno_recovery_ast_type, false); 2894 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 2895 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 2896 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 2897 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 2898 Opts.InstantiationDepth = 2899 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 2900 Opts.ArrowDepth = 2901 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 2902 Opts.ConstexprCallDepth = 2903 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 2904 Opts.ConstexprStepLimit = 2905 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 2906 Opts.EnableNewConstInterp = 2907 Args.hasArg(OPT_fexperimental_new_constant_interpreter); 2908 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 2909 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 2910 Opts.NumLargeByValueCopy = 2911 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 2912 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 2913 Opts.ObjCConstantStringClass = 2914 std::string(Args.getLastArgValue(OPT_fconstant_string_class)); 2915 Opts.ObjCDefaultSynthProperties = 2916 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 2917 Opts.EncodeExtendedBlockSig = 2918 Args.hasArg(OPT_fencode_extended_block_signature); 2919 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 2920 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 2921 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 2922 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 2923 Opts.DoubleSize = getLastArgIntValue(Args, OPT_mdouble_EQ, 0, Diags); 2924 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 2925 ? 128 2926 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 2927 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble); 2928 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2929 Opts.ROPI = Args.hasArg(OPT_fropi); 2930 Opts.RWPI = Args.hasArg(OPT_frwpi); 2931 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 2932 Opts.Static = Args.hasArg(OPT_static_define); 2933 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2934 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2935 || Args.hasArg(OPT_fdump_record_layouts); 2936 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2937 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2938 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2939 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2940 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2941 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2942 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2943 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2944 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2945 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2946 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2947 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2948 Opts.ModuleName = std::string(Args.getLastArgValue(OPT_fmodule_name_EQ)); 2949 Opts.CurrentModule = Opts.ModuleName; 2950 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2951 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2952 llvm::sort(Opts.ModuleFeatures); 2953 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2954 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2955 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2956 // is enabled. 2957 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2958 | Opts.NativeHalfArgsAndReturns; 2959 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2960 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions 2961 2962 // __declspec is enabled by default for the PS4 by the driver, and also 2963 // enabled for Microsoft Extensions or Borland Extensions, here. 2964 // 2965 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2966 // CUDA extension. However, it is required for supporting 2967 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2968 // been rewritten in terms of something more generic, remove the Opts.CUDA 2969 // term here. 2970 Opts.DeclSpecKeyword = 2971 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2972 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2973 2974 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2975 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2976 .Case("target", LangOptions::ASMM_Target) 2977 .Case("no", LangOptions::ASMM_Off) 2978 .Case("yes", LangOptions::ASMM_On) 2979 .Default(255)) { 2980 default: 2981 Diags.Report(diag::err_drv_invalid_value) 2982 << "-faddress-space-map-mangling=" << A->getValue(); 2983 break; 2984 case LangOptions::ASMM_Target: 2985 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2986 break; 2987 case LangOptions::ASMM_On: 2988 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2989 break; 2990 case LangOptions::ASMM_Off: 2991 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2992 break; 2993 } 2994 } 2995 2996 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2997 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2998 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2999 A->getValue()) 3000 .Case("single", 3001 LangOptions::PPTMK_FullGeneralitySingleInheritance) 3002 .Case("multiple", 3003 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 3004 .Case("virtual", 3005 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 3006 .Default(LangOptions::PPTMK_BestCase); 3007 if (InheritanceModel == LangOptions::PPTMK_BestCase) 3008 Diags.Report(diag::err_drv_invalid_value) 3009 << "-fms-memptr-rep=" << A->getValue(); 3010 3011 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 3012 } 3013 3014 // Check for MS default calling conventions being specified. 3015 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 3016 LangOptions::DefaultCallingConvention DefaultCC = 3017 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue()) 3018 .Case("cdecl", LangOptions::DCC_CDecl) 3019 .Case("fastcall", LangOptions::DCC_FastCall) 3020 .Case("stdcall", LangOptions::DCC_StdCall) 3021 .Case("vectorcall", LangOptions::DCC_VectorCall) 3022 .Case("regcall", LangOptions::DCC_RegCall) 3023 .Default(LangOptions::DCC_None); 3024 if (DefaultCC == LangOptions::DCC_None) 3025 Diags.Report(diag::err_drv_invalid_value) 3026 << "-fdefault-calling-conv=" << A->getValue(); 3027 3028 llvm::Triple T(TargetOpts.Triple); 3029 llvm::Triple::ArchType Arch = T.getArch(); 3030 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 3031 DefaultCC == LangOptions::DCC_StdCall) && 3032 Arch != llvm::Triple::x86; 3033 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 3034 DefaultCC == LangOptions::DCC_RegCall) && 3035 !T.isX86(); 3036 if (emitError) 3037 Diags.Report(diag::err_drv_argument_not_allowed_with) 3038 << A->getSpelling() << T.getTriple(); 3039 else 3040 Opts.setDefaultCallingConv(DefaultCC); 3041 } 3042 3043 Opts.SemanticInterposition = Args.hasArg(OPT_fsemantic_interposition); 3044 3045 // -mrtd option 3046 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3047 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3048 Diags.Report(diag::err_drv_argument_not_allowed_with) 3049 << A->getSpelling() << "-fdefault-calling-conv"; 3050 else { 3051 llvm::Triple T(TargetOpts.Triple); 3052 if (T.getArch() != llvm::Triple::x86) 3053 Diags.Report(diag::err_drv_argument_not_allowed_with) 3054 << A->getSpelling() << T.getTriple(); 3055 else 3056 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3057 } 3058 } 3059 3060 // Check if -fopenmp is specified and set default version to 4.5. 3061 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0; 3062 // Check if -fopenmp-simd is specified. 3063 bool IsSimdSpecified = 3064 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3065 /*Default=*/false); 3066 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3067 Opts.OpenMPUseTLS = 3068 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3069 Opts.OpenMPIsDevice = 3070 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3071 Opts.OpenMPIRBuilder = 3072 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3073 bool IsTargetSpecified = 3074 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3075 3076 if (Opts.OpenMP || Opts.OpenMPSimd) { 3077 if (int Version = getLastArgIntValue( 3078 Args, OPT_fopenmp_version_EQ, 3079 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags)) 3080 Opts.OpenMP = Version; 3081 else if (IsSimdSpecified || IsTargetSpecified) 3082 Opts.OpenMP = 45; 3083 // Provide diagnostic when a given target is not expected to be an OpenMP 3084 // device or host. 3085 if (!Opts.OpenMPIsDevice) { 3086 switch (T.getArch()) { 3087 default: 3088 break; 3089 // Add unsupported host targets here: 3090 case llvm::Triple::nvptx: 3091 case llvm::Triple::nvptx64: 3092 Diags.Report(diag::err_drv_omp_host_target_not_supported) 3093 << TargetOpts.Triple; 3094 break; 3095 } 3096 } 3097 } 3098 3099 // Set the flag to prevent the implementation from emitting device exception 3100 // handling code for those requiring so. 3101 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) { 3102 Opts.Exceptions = 0; 3103 Opts.CXXExceptions = 0; 3104 } 3105 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3106 Opts.OpenMPCUDANumSMs = 3107 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3108 Opts.OpenMPCUDANumSMs, Diags); 3109 Opts.OpenMPCUDABlocksPerSM = 3110 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3111 Opts.OpenMPCUDABlocksPerSM, Diags); 3112 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3113 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3114 Opts.OpenMPCUDAReductionBufNum, Diags); 3115 } 3116 3117 // Prevent auto-widening the representation of loop counters during an 3118 // OpenMP collapse clause. 3119 Opts.OpenMPOptimisticCollapse = 3120 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0; 3121 3122 // Get the OpenMP target triples if any. 3123 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3124 3125 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3126 llvm::Triple TT(A->getValue(i)); 3127 3128 if (TT.getArch() == llvm::Triple::UnknownArch || 3129 !(TT.getArch() == llvm::Triple::aarch64 || 3130 TT.getArch() == llvm::Triple::ppc || 3131 TT.getArch() == llvm::Triple::ppc64 || 3132 TT.getArch() == llvm::Triple::ppc64le || 3133 TT.getArch() == llvm::Triple::nvptx || 3134 TT.getArch() == llvm::Triple::nvptx64 || 3135 TT.getArch() == llvm::Triple::x86 || 3136 TT.getArch() == llvm::Triple::x86_64)) 3137 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3138 else 3139 Opts.OMPTargetTriples.push_back(TT); 3140 } 3141 } 3142 3143 // Get OpenMP host file path if any and report if a non existent file is 3144 // found 3145 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3146 Opts.OMPHostIRFile = A->getValue(); 3147 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3148 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3149 << Opts.OMPHostIRFile; 3150 } 3151 3152 // Set CUDA mode for OpenMP target NVPTX if specified in options 3153 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() && 3154 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3155 3156 // Set CUDA mode for OpenMP target NVPTX if specified in options 3157 Opts.OpenMPCUDAForceFullRuntime = 3158 Opts.OpenMPIsDevice && T.isNVPTX() && 3159 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3160 3161 // Record whether the __DEPRECATED define was requested. 3162 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 3163 OPT_fno_deprecated_macro, 3164 Opts.Deprecated); 3165 3166 // FIXME: Eliminate this dependency. 3167 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3168 OptSize = getOptimizationLevelSize(Args); 3169 Opts.Optimize = Opt != 0; 3170 Opts.OptimizeSize = OptSize != 0; 3171 3172 // This is the __NO_INLINE__ define, which just depends on things like the 3173 // optimization level and -fno-inline, not actually whether the backend has 3174 // inlining enabled. 3175 Opts.NoInlineDefine = !Opts.Optimize; 3176 if (Arg *InlineArg = Args.getLastArg( 3177 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3178 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3179 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3180 Opts.NoInlineDefine = true; 3181 3182 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 3183 Args.hasArg(OPT_cl_fast_relaxed_math); 3184 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 3185 Args.hasArg(OPT_cl_finite_math_only) || 3186 Args.hasArg(OPT_cl_fast_relaxed_math); 3187 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 3188 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3189 Args.hasArg(OPT_cl_fast_relaxed_math); 3190 Opts.AllowFPReassoc = Opts.FastMath || Args.hasArg(OPT_mreassociate); 3191 Opts.NoHonorNaNs = Opts.FastMath || Opts.FiniteMathOnly || 3192 Args.hasArg(OPT_menable_no_nans) || 3193 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3194 Args.hasArg(OPT_cl_finite_math_only) || 3195 Args.hasArg(OPT_cl_fast_relaxed_math); 3196 Opts.NoHonorInfs = Opts.FastMath || Opts.FiniteMathOnly || 3197 Args.hasArg(OPT_menable_no_infinities) || 3198 Args.hasArg(OPT_cl_finite_math_only) || 3199 Args.hasArg(OPT_cl_fast_relaxed_math); 3200 Opts.NoSignedZero = Opts.FastMath || (Args.hasArg(OPT_fno_signed_zeros) || 3201 Args.hasArg(OPT_cl_no_signed_zeros) || 3202 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 3203 Args.hasArg(OPT_cl_fast_relaxed_math)); 3204 Opts.AllowRecip = Opts.FastMath || Args.hasArg(OPT_freciprocal_math); 3205 // Currently there's no clang option to enable this individually 3206 Opts.ApproxFunc = Opts.FastMath; 3207 3208 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3209 StringRef Val = A->getValue(); 3210 if (Val == "fast") 3211 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3212 else if (Val == "on") 3213 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3214 else if (Val == "off") 3215 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3216 else 3217 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3218 } 3219 3220 auto FPRM = llvm::RoundingMode::NearestTiesToEven; 3221 if (Args.hasArg(OPT_frounding_math)) { 3222 FPRM = llvm::RoundingMode::Dynamic; 3223 } 3224 Opts.setFPRoundingMode(FPRM); 3225 3226 if (Args.hasArg(OPT_ftrapping_math)) { 3227 Opts.setFPExceptionMode(LangOptions::FPE_Strict); 3228 } 3229 3230 if (Args.hasArg(OPT_fno_trapping_math)) { 3231 Opts.setFPExceptionMode(LangOptions::FPE_Ignore); 3232 } 3233 3234 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore; 3235 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) { 3236 StringRef Val = A->getValue(); 3237 if (Val.equals("ignore")) 3238 FPEB = LangOptions::FPE_Ignore; 3239 else if (Val.equals("maytrap")) 3240 FPEB = LangOptions::FPE_MayTrap; 3241 else if (Val.equals("strict")) 3242 FPEB = LangOptions::FPE_Strict; 3243 else 3244 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3245 } 3246 Opts.setFPExceptionMode(FPEB); 3247 3248 Opts.RetainCommentsFromSystemHeaders = 3249 Args.hasArg(OPT_fretain_comments_from_system_headers); 3250 3251 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 3252 switch (SSP) { 3253 default: 3254 Diags.Report(diag::err_drv_invalid_value) 3255 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 3256 break; 3257 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 3258 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 3259 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 3260 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 3261 } 3262 3263 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) { 3264 StringRef Val = A->getValue(); 3265 if (Val == "uninitialized") 3266 Opts.setTrivialAutoVarInit( 3267 LangOptions::TrivialAutoVarInitKind::Uninitialized); 3268 else if (Val == "zero") 3269 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero); 3270 else if (Val == "pattern") 3271 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern); 3272 else 3273 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3274 } 3275 3276 // Parse -fsanitize= arguments. 3277 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3278 Diags, Opts.Sanitize); 3279 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 3280 Opts.SanitizeAddressFieldPadding = 3281 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 3282 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3283 std::vector<std::string> systemBlacklists = 3284 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3285 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 3286 systemBlacklists.begin(), 3287 systemBlacklists.end()); 3288 3289 // -fxray-instrument 3290 Opts.XRayInstrument = Args.hasArg(OPT_fxray_instrument); 3291 Opts.XRayAlwaysEmitCustomEvents = 3292 Args.hasArg(OPT_fxray_always_emit_customevents); 3293 Opts.XRayAlwaysEmitTypedEvents = 3294 Args.hasArg(OPT_fxray_always_emit_typedevents); 3295 3296 // -fxray-{always,never}-instrument= filenames. 3297 Opts.XRayAlwaysInstrumentFiles = 3298 Args.getAllArgValues(OPT_fxray_always_instrument); 3299 Opts.XRayNeverInstrumentFiles = 3300 Args.getAllArgValues(OPT_fxray_never_instrument); 3301 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list); 3302 3303 // -fforce-emit-vtables 3304 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables); 3305 3306 // -fallow-editor-placeholders 3307 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders); 3308 3309 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors); 3310 3311 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3312 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3313 3314 StringRef Ver = A->getValue(); 3315 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3316 unsigned Major, Minor = 0; 3317 3318 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3319 // y or y.0 (4 <= y <= current version). 3320 if (!VerParts.first.startswith("0") && 3321 !VerParts.first.getAsInteger(10, Major) && 3322 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3323 (Major == 3 ? VerParts.second.size() == 1 && 3324 !VerParts.second.getAsInteger(10, Minor) 3325 : VerParts.first.size() == Ver.size() || 3326 VerParts.second == "0")) { 3327 // Got a valid version number. 3328 if (Major == 3 && Minor <= 8) 3329 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3330 else if (Major <= 4) 3331 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3332 else if (Major <= 6) 3333 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3334 else if (Major <= 7) 3335 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3336 else if (Major <= 9) 3337 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3338 } else if (Ver != "latest") { 3339 Diags.Report(diag::err_drv_invalid_value) 3340 << A->getAsString(Args) << A->getValue(); 3341 } 3342 } 3343 3344 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers); 3345 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj); 3346 3347 Opts.MatrixTypes = Args.hasArg(OPT_fenable_matrix); 3348 3349 Opts.MaxTokens = getLastArgIntValue(Args, OPT_fmax_tokens_EQ, 0, Diags); 3350 3351 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3352 StringRef SignScope = A->getValue(); 3353 3354 if (SignScope.equals_lower("none")) 3355 Opts.setSignReturnAddressScope( 3356 LangOptions::SignReturnAddressScopeKind::None); 3357 else if (SignScope.equals_lower("all")) 3358 Opts.setSignReturnAddressScope( 3359 LangOptions::SignReturnAddressScopeKind::All); 3360 else if (SignScope.equals_lower("non-leaf")) 3361 Opts.setSignReturnAddressScope( 3362 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3363 else 3364 Diags.Report(diag::err_drv_invalid_value) 3365 << A->getAsString(Args) << SignScope; 3366 3367 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3368 StringRef SignKey = A->getValue(); 3369 if (!SignScope.empty() && !SignKey.empty()) { 3370 if (SignKey.equals_lower("a_key")) 3371 Opts.setSignReturnAddressKey( 3372 LangOptions::SignReturnAddressKeyKind::AKey); 3373 else if (SignKey.equals_lower("b_key")) 3374 Opts.setSignReturnAddressKey( 3375 LangOptions::SignReturnAddressKeyKind::BKey); 3376 else 3377 Diags.Report(diag::err_drv_invalid_value) 3378 << A->getAsString(Args) << SignKey; 3379 } 3380 } 3381 } 3382 3383 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce); 3384 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening); 3385 3386 Opts.CompatibilityQualifiedIdBlockParamTypeChecking = 3387 Args.hasArg(OPT_fcompatibility_qualified_id_block_param_type_checking); 3388 } 3389 3390 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3391 switch (Action) { 3392 case frontend::ASTDeclList: 3393 case frontend::ASTDump: 3394 case frontend::ASTPrint: 3395 case frontend::ASTView: 3396 case frontend::EmitAssembly: 3397 case frontend::EmitBC: 3398 case frontend::EmitHTML: 3399 case frontend::EmitLLVM: 3400 case frontend::EmitLLVMOnly: 3401 case frontend::EmitCodeGenOnly: 3402 case frontend::EmitObj: 3403 case frontend::FixIt: 3404 case frontend::GenerateModule: 3405 case frontend::GenerateModuleInterface: 3406 case frontend::GenerateHeaderModule: 3407 case frontend::GeneratePCH: 3408 case frontend::GenerateInterfaceStubs: 3409 case frontend::ParseSyntaxOnly: 3410 case frontend::ModuleFileInfo: 3411 case frontend::VerifyPCH: 3412 case frontend::PluginAction: 3413 case frontend::RewriteObjC: 3414 case frontend::RewriteTest: 3415 case frontend::RunAnalysis: 3416 case frontend::TemplightDump: 3417 case frontend::MigrateSource: 3418 return false; 3419 3420 case frontend::DumpCompilerOptions: 3421 case frontend::DumpRawTokens: 3422 case frontend::DumpTokens: 3423 case frontend::InitOnly: 3424 case frontend::PrintPreamble: 3425 case frontend::PrintPreprocessedInput: 3426 case frontend::RewriteMacros: 3427 case frontend::RunPreprocessorOnly: 3428 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3429 return true; 3430 } 3431 llvm_unreachable("invalid frontend action"); 3432 } 3433 3434 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 3435 DiagnosticsEngine &Diags, 3436 frontend::ActionKind Action) { 3437 Opts.ImplicitPCHInclude = std::string(Args.getLastArgValue(OPT_include_pch)); 3438 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 3439 Args.hasArg(OPT_pch_through_hdrstop_use); 3440 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create); 3441 Opts.PCHThroughHeader = 3442 std::string(Args.getLastArgValue(OPT_pch_through_header_EQ)); 3443 Opts.UsePredefines = !Args.hasArg(OPT_undef); 3444 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 3445 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 3446 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors); 3447 3448 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 3449 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 3450 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 3451 3452 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 3453 auto Split = StringRef(A).split('='); 3454 Opts.MacroPrefixMap.insert( 3455 {std::string(Split.first), std::string(Split.second)}); 3456 } 3457 3458 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 3459 StringRef Value(A->getValue()); 3460 size_t Comma = Value.find(','); 3461 unsigned Bytes = 0; 3462 unsigned EndOfLine = 0; 3463 3464 if (Comma == StringRef::npos || 3465 Value.substr(0, Comma).getAsInteger(10, Bytes) || 3466 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 3467 Diags.Report(diag::err_drv_preamble_format); 3468 else { 3469 Opts.PrecompiledPreambleBytes.first = Bytes; 3470 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 3471 } 3472 } 3473 3474 // Add the __CET__ macro if a CFProtection option is set. 3475 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3476 StringRef Name = A->getValue(); 3477 if (Name == "branch") 3478 Opts.addMacroDef("__CET__=1"); 3479 else if (Name == "return") 3480 Opts.addMacroDef("__CET__=2"); 3481 else if (Name == "full") 3482 Opts.addMacroDef("__CET__=3"); 3483 } 3484 3485 // Add macros from the command line. 3486 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 3487 if (A->getOption().matches(OPT_D)) 3488 Opts.addMacroDef(A->getValue()); 3489 else 3490 Opts.addMacroUndef(A->getValue()); 3491 } 3492 3493 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 3494 3495 // Add the ordered list of -includes. 3496 for (const auto *A : Args.filtered(OPT_include)) 3497 Opts.Includes.emplace_back(A->getValue()); 3498 3499 for (const auto *A : Args.filtered(OPT_chain_include)) 3500 Opts.ChainedIncludes.emplace_back(A->getValue()); 3501 3502 for (const auto *A : Args.filtered(OPT_remap_file)) { 3503 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 3504 3505 if (Split.second.empty()) { 3506 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 3507 continue; 3508 } 3509 3510 Opts.addRemappedFile(Split.first, Split.second); 3511 } 3512 3513 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 3514 StringRef Name = A->getValue(); 3515 unsigned Library = llvm::StringSwitch<unsigned>(Name) 3516 .Case("libc++", ARCXX_libcxx) 3517 .Case("libstdc++", ARCXX_libstdcxx) 3518 .Case("none", ARCXX_nolib) 3519 .Default(~0U); 3520 if (Library == ~0U) 3521 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 3522 else 3523 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 3524 } 3525 3526 // Always avoid lexing editor placeholders when we're just running the 3527 // preprocessor as we never want to emit the 3528 // "editor placeholder in source file" error in PP only mode. 3529 if (isStrictlyPreprocessorAction(Action)) 3530 Opts.LexEditorPlaceholders = false; 3531 3532 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer); 3533 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash); 3534 } 3535 3536 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 3537 ArgList &Args, 3538 frontend::ActionKind Action) { 3539 if (isStrictlyPreprocessorAction(Action)) 3540 Opts.ShowCPP = !Args.hasArg(OPT_dM); 3541 else 3542 Opts.ShowCPP = 0; 3543 3544 Opts.ShowComments = Args.hasArg(OPT_C); 3545 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 3546 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 3547 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 3548 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 3549 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 3550 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports); 3551 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 3552 } 3553 3554 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 3555 DiagnosticsEngine &Diags) { 3556 Opts.CodeModel = std::string(Args.getLastArgValue(OPT_mcmodel_EQ, "default")); 3557 Opts.ABI = std::string(Args.getLastArgValue(OPT_target_abi)); 3558 if (Arg *A = Args.getLastArg(OPT_meabi)) { 3559 StringRef Value = A->getValue(); 3560 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 3561 .Case("default", llvm::EABI::Default) 3562 .Case("4", llvm::EABI::EABI4) 3563 .Case("5", llvm::EABI::EABI5) 3564 .Case("gnu", llvm::EABI::GNU) 3565 .Default(llvm::EABI::Unknown); 3566 if (EABIVersion == llvm::EABI::Unknown) 3567 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3568 << Value; 3569 else 3570 Opts.EABIVersion = EABIVersion; 3571 } 3572 Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); 3573 Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); 3574 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 3575 Opts.LinkerVersion = 3576 std::string(Args.getLastArgValue(OPT_target_linker_version)); 3577 Opts.Triple = std::string(Args.getLastArgValue(OPT_triple)); 3578 // Use the default target triple if unspecified. 3579 if (Opts.Triple.empty()) 3580 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 3581 Opts.Triple = llvm::Triple::normalize(Opts.Triple); 3582 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 3583 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128); 3584 Opts.NVPTXUseShortPointers = Args.hasFlag( 3585 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false); 3586 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 3587 llvm::VersionTuple Version; 3588 if (Version.tryParse(A->getValue())) 3589 Diags.Report(diag::err_drv_invalid_value) 3590 << A->getAsString(Args) << A->getValue(); 3591 else 3592 Opts.SDKVersion = Version; 3593 } 3594 } 3595 3596 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 3597 ArrayRef<const char *> CommandLineArgs, 3598 DiagnosticsEngine &Diags) { 3599 bool Success = true; 3600 3601 // Parse the arguments. 3602 const OptTable &Opts = getDriverOptTable(); 3603 const unsigned IncludedFlagsBitmask = options::CC1Option; 3604 unsigned MissingArgIndex, MissingArgCount; 3605 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 3606 MissingArgCount, IncludedFlagsBitmask); 3607 LangOptions &LangOpts = *Res.getLangOpts(); 3608 3609 // Check for missing argument error. 3610 if (MissingArgCount) { 3611 Diags.Report(diag::err_drv_missing_argument) 3612 << Args.getArgString(MissingArgIndex) << MissingArgCount; 3613 Success = false; 3614 } 3615 3616 // Issue errors on unknown arguments. 3617 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 3618 auto ArgString = A->getAsString(Args); 3619 std::string Nearest; 3620 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 3621 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 3622 else 3623 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 3624 << ArgString << Nearest; 3625 Success = false; 3626 } 3627 3628 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 3629 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 3630 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 3631 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 3632 Res.getDependencyOutputOpts().Targets.empty()) { 3633 Diags.Report(diag::err_fe_dependency_file_requires_MT); 3634 Success = false; 3635 } 3636 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 3637 /*DefaultDiagColor=*/false); 3638 ParseCommentArgs(LangOpts.CommentOpts, Args); 3639 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 3640 // FIXME: We shouldn't have to pass the DashX option around here 3641 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 3642 LangOpts.IsHeaderFile); 3643 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 3644 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 3645 Res.getTargetOpts(), Res.getFrontendOpts()); 3646 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, 3647 Res.getFileSystemOpts().WorkingDir); 3648 llvm::Triple T(Res.getTargetOpts().Triple); 3649 if (DashX.getFormat() == InputKind::Precompiled || 3650 DashX.getLanguage() == Language::LLVM_IR) { 3651 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3652 // PassManager in BackendUtil.cpp. They need to be initializd no matter 3653 // what the input type is. 3654 if (Args.hasArg(OPT_fobjc_arc)) 3655 LangOpts.ObjCAutoRefCount = 1; 3656 // PIClevel and PIELevel are needed during code generation and this should be 3657 // set regardless of the input type. 3658 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3659 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 3660 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3661 Diags, LangOpts.Sanitize); 3662 } else { 3663 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3664 // FIXME: Should we really be calling this for an Language::Asm input? 3665 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 3666 Res.getPreprocessorOpts(), Diags); 3667 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 3668 LangOpts.ObjCExceptions = 1; 3669 if (T.isOSDarwin() && DashX.isPreprocessed()) { 3670 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for 3671 // preprocessed input as we don't expect it to be used with -std=libc++ 3672 // anyway. 3673 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found"); 3674 } 3675 } 3676 3677 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) 3678 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect"); 3679 3680 LangOpts.FunctionAlignment = 3681 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags); 3682 3683 if (LangOpts.CUDA) { 3684 // During CUDA device-side compilation, the aux triple is the 3685 // triple used for host compilation. 3686 if (LangOpts.CUDAIsDevice) 3687 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3688 } 3689 3690 // Set the triple of the host for OpenMP device compile. 3691 if (LangOpts.OpenMPIsDevice) 3692 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 3693 3694 // FIXME: Override value name discarding when asan or msan is used because the 3695 // backend passes depend on the name of the alloca in order to print out 3696 // names. 3697 Res.getCodeGenOpts().DiscardValueNames &= 3698 !LangOpts.Sanitize.has(SanitizerKind::Address) && 3699 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 3700 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 3701 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 3702 3703 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 3704 Res.getFrontendOpts().ProgramAction); 3705 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 3706 Res.getFrontendOpts().ProgramAction); 3707 3708 // Turn on -Wspir-compat for SPIR target. 3709 if (T.isSPIR()) 3710 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 3711 3712 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 3713 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 3714 !Res.getLangOpts()->Sanitize.empty()) { 3715 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 3716 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 3717 } 3718 return Success; 3719 } 3720 3721 std::string CompilerInvocation::getModuleHash() const { 3722 // Note: For QoI reasons, the things we use as a hash here should all be 3723 // dumped via the -module-info flag. 3724 using llvm::hash_code; 3725 using llvm::hash_value; 3726 using llvm::hash_combine; 3727 using llvm::hash_combine_range; 3728 3729 // Start the signature with the compiler version. 3730 // FIXME: We'd rather use something more cryptographically sound than 3731 // CityHash, but this will do for now. 3732 hash_code code = hash_value(getClangFullRepositoryVersion()); 3733 3734 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 3735 // and getClangFullRepositoryVersion() doesn't include git revision. 3736 code = hash_combine(code, serialization::VERSION_MAJOR, 3737 serialization::VERSION_MINOR); 3738 3739 // Extend the signature with the language options 3740 #define LANGOPT(Name, Bits, Default, Description) \ 3741 code = hash_combine(code, LangOpts->Name); 3742 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 3743 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 3744 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 3745 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 3746 #include "clang/Basic/LangOptions.def" 3747 3748 for (StringRef Feature : LangOpts->ModuleFeatures) 3749 code = hash_combine(code, Feature); 3750 3751 // Extend the signature with the target options. 3752 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 3753 TargetOpts->ABI); 3754 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 3755 code = hash_combine(code, FeatureAsWritten); 3756 3757 // Extend the signature with preprocessor options. 3758 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 3759 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 3760 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 3761 3762 for (const auto &I : getPreprocessorOpts().Macros) { 3763 // If we're supposed to ignore this macro for the purposes of modules, 3764 // don't put it into the hash. 3765 if (!hsOpts.ModulesIgnoreMacros.empty()) { 3766 // Check whether we're ignoring this macro. 3767 StringRef MacroDef = I.first; 3768 if (hsOpts.ModulesIgnoreMacros.count( 3769 llvm::CachedHashString(MacroDef.split('=').first))) 3770 continue; 3771 } 3772 3773 code = hash_combine(code, I.first, I.second); 3774 } 3775 3776 // Extend the signature with the sysroot and other header search options. 3777 code = hash_combine(code, hsOpts.Sysroot, 3778 hsOpts.ModuleFormat, 3779 hsOpts.UseDebugInfo, 3780 hsOpts.UseBuiltinIncludes, 3781 hsOpts.UseStandardSystemIncludes, 3782 hsOpts.UseStandardCXXIncludes, 3783 hsOpts.UseLibcxx, 3784 hsOpts.ModulesValidateDiagnosticOptions); 3785 code = hash_combine(code, hsOpts.ResourceDir); 3786 3787 if (hsOpts.ModulesStrictContextHash) { 3788 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 3789 hsOpts.SystemHeaderPrefixes.end()); 3790 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 3791 hsOpts.UserEntries.end()); 3792 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 3793 hsOpts.UserEntries.size(), UEC); 3794 3795 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 3796 #define DIAGOPT(Name, Bits, Default) \ 3797 code = hash_combine(code, diagOpts.Name); 3798 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 3799 code = hash_combine(code, diagOpts.get##Name()); 3800 #include "clang/Basic/DiagnosticOptions.def" 3801 #undef DIAGOPT 3802 #undef ENUM_DIAGOPT 3803 } 3804 3805 // Extend the signature with the user build path. 3806 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 3807 3808 // Extend the signature with the module file extensions. 3809 const FrontendOptions &frontendOpts = getFrontendOpts(); 3810 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 3811 code = ext->hashExtension(code); 3812 } 3813 3814 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 3815 // affects the debug info in the PCM. 3816 if (getCodeGenOpts().DebugTypeExtRefs) 3817 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 3818 code = hash_combine(code, KeyValue.first, KeyValue.second); 3819 3820 // Extend the signature with the enabled sanitizers, if at least one is 3821 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 3822 SanitizerSet SanHash = LangOpts->Sanitize; 3823 SanHash.clear(getPPTransparentSanitizers()); 3824 if (!SanHash.empty()) 3825 code = hash_combine(code, SanHash.Mask); 3826 3827 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 3828 } 3829 3830 namespace clang { 3831 3832 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 3833 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 3834 DiagnosticsEngine &Diags) { 3835 return createVFSFromCompilerInvocation(CI, Diags, 3836 llvm::vfs::getRealFileSystem()); 3837 } 3838 3839 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation( 3840 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 3841 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 3842 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 3843 return BaseFS; 3844 3845 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 3846 // earlier vfs files are on the bottom 3847 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 3848 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 3849 Result->getBufferForFile(File); 3850 if (!Buffer) { 3851 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 3852 continue; 3853 } 3854 3855 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 3856 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 3857 /*DiagContext*/ nullptr, Result); 3858 if (!FS) { 3859 Diags.Report(diag::err_invalid_vfs_overlay) << File; 3860 continue; 3861 } 3862 3863 Result = FS; 3864 } 3865 return Result; 3866 } 3867 3868 } // namespace clang 3869